From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <tews@os.inf.tu-dresden.de>
Received: from mail1-relais-roc.national.inria.fr (mail1-relais-roc.national.inria.fr [192.134.164.82])
	by yquem.inria.fr (Postfix) with ESMTP id A0780BBAF
	for <caml-list@yquem.inria.fr>; Tue, 24 Aug 2010 10:29:10 +0200 (CEST)
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: ApoEAKofc0yNTDBjgWdsb2JhbACTKo0TFQEBFiIiuU6FNwSJeA
X-IronPort-AV: E=Sophos;i="4.56,262,1280700000"; 
   d="scan'208";a="66044391"
Received: from os.inf.tu-dresden.de ([141.76.48.99])
  by mail1-smtp-roc.national.inria.fr with ESMTP/TLS/DHE-RSA-AES256-SHA; 24 Aug 2010 10:29:10 +0200
Received: from niob.inf.tu-dresden.de ([141.76.48.41] helo=blau.inf.tu-dresden.de)
	by os.inf.tu-dresden.de with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.72)
	id 1OnosX-0005AG-Eb
	for caml-list@inria.fr; Tue, 24 Aug 2010 10:29:09 +0200
Received: from tews by blau.inf.tu-dresden.de with local (Exim 4.72)
	(envelope-from <tews@blau.inf.tu-dresden.de>)
	id 1OnosX-0005bS-1P
	for caml-list@inria.fr; Tue, 24 Aug 2010 10:29:09 +0200
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Message-ID: <19571.33492.589609.728522@blau.inf.tu-dresden.de>
Date: Tue, 24 Aug 2010 10:29:08 +0200
To: caml-list@inria.fr
Subject: ocamlbuild: full path for camlp4 preprocessors?
X-Mailer: VM 8.1.0 under 23.1.1 (i486-pc-linux-gnu)
From: Hendrik Tews <tews@os.inf.tu-dresden.de>
X-Spam: no; 0.00; camlp:01 hendrik:01 tews:01 tews:01 camlp:01 ocaml:01 ocaml-:01 ocaml-:01 compiler:01 ocamldep:01 -pp:01 usr:01 hendrik:01 tu-dresden:01 compiles:01 

Hi,

I have another ocamlbuild question: How can I tell ocamlbuild to
use the full path for the camlp4 preprocessors?

I just compiled ocaml 3.12 to test if it compiles my software. So
I do

   /soft/ocaml-3.12.0/bin/ocamlbuild target.native

and ocamlbuild is clever enough to prefix all commands with
/soft/ocaml-3.12.0/bin to make sure the 3.12 compiler
is used. But then comes this file that needs camlp4 and
ocamlbuild runs

   /soft/ocaml-3.12.0/bin/ocamldep.opt -pp camlp4orf -modules xx.ml > ...

which of course fails because camlp4orf is version 3.11.2 from
/usr/bin.

How can I tell ocamlbuild to also use the full path for camlp4
preprocessors?

(I could put /soft/ocaml-3.12.0/bin into PATH, but there should
be a way to solve this problem without changing PATH: It should
be possible to run ocamlbuild without putting the ocaml-bin-dir
into PATH)

Thanks,

Hendrik Tews