Very much hurried and will look at it later ...

1. Don't use (file "xyz.rkt") just change it all to "xyz.rkt".  i.e. drop
the (file ).
2. The dir MsgPack.rkt uses invalid chars (assume the '.') so change it to
say "msgpack/"
3. See 1.7.3 Linking and Developing New Packages in Racket Docs.
     Run '$ raco pkg install'  which will make your collection visible,
including for tests.
     e.g.
     % raco test test/pack/binary.rkt
     raco test: (submod "test/pack/binary.rkt" test)
    OK, passed 100 tests.
    OK, passed 100 tests.
    2 tests passed
4.  With regard to the ext #:transparent and the
      unpack: broke its own contract
      any-wrap/c: Unable to protect opaque value passed as `Any`
     value: #<ext>
     I have hit this landmine before but as I recall usually on a
(require/typed [#:opaque ...]) situation.
     Try googling the error.  I recall some suggestion on a
define-refined-subtype of the opaque structure or some such to allow the
contract to wrap.   I'll definitely look at it tonight if someone else
doesn't offer up a solution.



On Sun, Aug 6, 2017 at 12:35 PM, <hiph...@openmailbox.org> wrote:

> *bump* I hope bumping is not frowned upon here. I just need to sort this
> one last issue out
>
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