Xavier Leroy a écrit :
> 
> I still have no idea how hard it is to implement Judicaël's scheme,
> though.
> 

What about the following idea (close to Vitaly Lugovsky's suggestion):

- the name of a compilation_unit would be a string list instead
  of a string.

- ocamlnewmagiccommand -o lib.cma a.cmo b.cmo c.cmo
  would rename the name of "A", "B" and "C" to [ "Lib" ; "A" ],
  [ "Lib" ; "B" ] and [ "Lib" ; "C"], would compile a small
  lib.ml with contents "module A = A;; module B = B;; module
  C=C;;" into lib.cmo and would replace references of
  a.cmo, b.cmo, c.cmo and lib.cmo to A, B, C by references to
  ["Lib"; "A" ], [ "Lib"; "B" ], [ "Lib"; "C" ].
  Then, it would just pack together these modules into one
  single library.

I am not really familiar with ocamlc source code but from what I can
read in bytecode/emitcode.mli, I guess implementing the two needed
operations (renaming a compilation unit and renaming some references of
a compilation unit to other compilation units) would be quite easy. Did
I miss anything ?

Judicaël.
-- 
Judicael.Courant@lri.fr, http://www.lri.fr/~jcourant/
(+33) (0)1 69 15 64 85
"Montre moi des morceaux de ton monde, et je te montrerai le mien"
Tim, matricule #929, condamné à mort.
http://rozenn.picard.free.fr/tim.html