Re: [Caml-list] Strange compilation error.

[Philippe Veber <philippe.veber@gmail.com>]

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2012/6/19 Maxence Guesdon <Maxence.Guesdon@inria.fr>

> On Tue, 19 Jun 2012 16:47:16 +0200
> Philippe Veber <philippe.veber@gmail.com> wrote:
>
> > 2012/6/19 Maxence Guesdon <Maxence.Guesdon@inria.fr>
> >
> > > On Tue, 19 Jun 2012 16:30:27 +0200
> > > Philippe Veber <philippe.veber@gmail.com> wrote:
> > >
> > > > Dear camlers,
> > >
> > > Hello,
> > >
> > > > I'm desperately stuck with the following issue: I fail to compile a
> > > program
> > > > using a module, but have no problem using the module in question in
> the
> > > > toplevel.
> > > >
> > > > Here is how I use it in the toplevel
> > > >
> > > > $ ocaml
> > > >         Objective Caml version 3.12.1
> > > >
> > > > # #directory
> > > > "/home/pveber/usr/ocamlbrew/ocaml-3.12.1/lib/ocaml/site-lib/R";;
> > > > # #load
> "/home/pveber/usr/ocamlbrew/ocaml-3.12.1/lib/ocaml/site-lib/R/
> > > > R_math.cma";;
> > > > # Rmath.pow;;
> > > > - : float -> float -> float = <fun>
> > > >
> > > >
> > > > Now with the following program:
> > > > $ cat test.ml
> > > > let x = Rmath.pow 2.
> > > >
> > > > I try to compile with the options corresponding to the toplevel
> > > directives:
> > > >
> > > > $ ocamlc -o rmath -I
> > > > /home/pveber/usr/ocamlbrew/ocaml-3.12.1/lib/ocaml/site-lib/R
> > > >
> /home/pveber/usr/ocamlbrew/ocaml-3.12.1/lib/ocaml/site-lib/R/R_math.cma
> > > > test.ml
> > > > File "test.ml", line 1, characters 8-17:
> > > > Error: Unbound module Rmath
> > >
> > > Do you have a R_math.cmi file in your ...site-lib/R directory ?
> > >
> >
> > Hi Maxence,
> >
> > I have a rmath.cmi, and Rmath is one of the modules contained in
> R_math.cma
> > That should be ok, right?
>
> Ah yes, sorry. Then I have no idea.
>
> You couldn't have guessed, that one was really really really silly: before
calling my test program test.ml, I called it rmath.ml. After I changed it,
but there still was a rmath.cmi in my current directory, which would hide
the one in site-lib/R.

Really sorry for the noise, and thanks Maxence for giving a hand!
ph.

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