[Caml-list] deriving

["Matej Košík" <5764c029b688c1c0d24a2e97cd764f@gmail.com>]

Hi,

I would like to play with / evaluate the "deriving" library:
http://code.google.com/p/deriving/wiki/Introduction

How can I:
- create a Ocaml top-level where I can play with it?
- compile programs which take advantage of this library?

I am on Fedora 16.

What I have tried is this:

  $ sudo yum install ocaml-deriving-devel
  $ rlwrap ocaml
  # #use "topfind";;
  # #require "deriving";;
  No such package: %{camlp4} - Required by `deriving'

I am not sure how to proceed.

------------------------------------------------

Concerning linking against this library, I have tried this:

  $ cat Main.ml

      let s = Show.show<int> 3

  $ ocamlc -I +deriving -pp "camlp4of -I `ocamlc -where`/deriving
nums.cma deriving.cma" deriving.cma Main.ml -o main

      File "ghost-location", line 7, characters 8--144:
      Error: Unbound value Show.show
      make: *** [main] Error 2

where "Main.ml" is supposed to be a program that uses syntactic sugar
provided by "deriving" library.

What is the proper way to get things compiled? I have failed to find any
examples.

Thanks in advance for the help.