On Mon, 2008-09-22 at 22:41 +0200, David MENTRE wrote:
> Hello,
> 
> I'm trying to compile an OCaml program I haven't written. I'm compiling
> it on an Ubuntu 8.04, OCaml 3.10.0.
> 
> The compilation fails with following error:
> """
> ocamlopt -pp "camlp4o pa_op.cmo" -I src                      -c src/common.ml
> File "src/common.ml", line 5, characters 101-102:
> Parse error: "in" expected after [binding] (in [expr])
> Preprocessor error
> """
> 
> Here is the beginning of the relevant file:
> """
> (** Common utility functions. *)
> 
> (* space *)
> 
> let heap_size () : float = float_of_int (Gc.stat ()).Gc.heap_words *. float_of_int (Sys.word_size / 8)  (* in bytes *)

This code successfuly compiled on my ocaml 3.10.2 without any
"pa_op.cmo", what is pa_op.cmo?