[compiler-hacking] Use of opam-compiler-conf: install packages

[Olivier Nicole]

On 04/04/2016 07:36 AM, Jeremy Yallop wrote:
> Is your OPAM package list up-to-date?  Recent versions of Core (e.g.
> 113.33.00) should meet the version constraints for modified trunk
> compilers:
> 
>    https://github.com/ocaml/opam-repository/blob/master/packages/core/core.113.33.00/opam#L29
> 
> Whether they'll actually build is another question, of course.

Thank you, I just needed to do an `opam update`. But now the ppx-tools
and sexplibs packages fail to build, and I'm quite sure it is not due to
my changes in translcore.ml (I merely changed a condition to `true` so
that records are always updated fieldwise). For example, the build of
ppx_tools fails with:

    File "src/gen/common.ml", line 73, characters 24-34:
    Error: This expression has type Types.constructor_arguments
           but an expression was expected of type Types.type_expr list

Am I missing something or did my changes really break the package?

Best regards,

Olivier

> Kind regards,
> 
> Jeremy.
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