Re: oasis

[Sylvain Le Gall <sylvain@le-gall.net>]

Hi,

On 26-11-2010, Anastasia Gornostaeva <ermine@ermine.pp.ru> wrote:
> Hello.
>
> How can I substitute in setup.ml (not in _oasis file) values for
> CCOpt and CCLib fields? I think it is better to substitute them from 
> setup.data, if I could to put proper values to setup.data.
> For example:
>   CCOpt: $freetype_ccopt
> and put to setup.data output of `freetype-config --clib` for field 
> freetype_ccopt.

As I answer you in private: there will be pkg-config support in 0.3.0.
This will solve this issue, at least.

(e.g. you will be able to define:
BuildDepends: freetype2 (pkg-config), oUnit, ...)

>
> The expected alternative way:
>   $ocaml setup.ml -build --override 'library("library-name").CCOpt' `freetype-config --clib`
> does not work, too.

The override stuff only works for defined runtime variables (ocamlc,
ocamlopt...). 

>
> I need a way to substitute paths.
>

A last solution, you can apply right now, is to override this call:
let () = setup ();;
(last line of setup.ml)

by 

let f pkg = 
  (* Call freetype-config and add flags where 
     needed in pkg
   *)
  ...

let () = BaseSetup.setup (f setup_t);;

Regards,
Sylvain Le Gall