Re: using opam ?

Le 06/11/2013 20:08, [email protected] a écrit :
>
> -[ Wed, Nov 06, 2013 at 05:44:01PM +0100, Vu Ngoc San ]----
> > The stupid thing is that I don't know how to do 2). The packages 
> seem to
> > be installed in
> > $HOME/.opam/system/lib, whereas I have a preexisting ocaml install 
> (ubuntu).
> > Do it mean that I need to include this DIR in my Makefile ?
>
> You should use ocamlfind (opam install ocamlfind).
> Then, supposed your PATH includes your opam switch bindir
>

ah, yes indeed, opam added some config to my .bashrc and my path starts 
with "$HOME/.opam/system/bin:"

> (which it should), then:
>
> ocamlfind ocamlc -where
>

hmm, doesn't work, so this is the problem, I guess:
$ which ocamlfind
/home/san/.opam/system/bin/ocamlfind
$ ocamlfind ocamlc -where
/usr/lib/ocaml



>
> should point toward your opam switch libdir.
> At this point, compiling using ocamlfind boils down to:
>
> ocamlfind ocamlopt -package lib1,lib2,lib3 ...other-options... -c 
> module.ml
>
> where lib1 etc are the name registered in the META files (usually the 
> same as
> the opam package name)
>
> Since OcamlMakefile already uses ocamlfind (apparently for libraries 
> specified
> by the PACKS parameter) I guess everything should runs all right.
>
>