From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <awarshaver@janestcapital.com>
X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on yquem.inria.fr
X-Spam-Level: 
X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=disabled 
	version=3.1.3
X-Original-To: caml-list@yquem.inria.fr
Delivered-To: caml-list@yquem.inria.fr
Received: from discorde.inria.fr (discorde.inria.fr [192.93.2.38])
	by yquem.inria.fr (Postfix) with ESMTP id B2A37BC6B
	for <caml-list@yquem.inria.fr>; Wed, 27 Jun 2007 18:14:10 +0200 (CEST)
Received: from smtp.janestcapital.com (www.janestcapital.com [66.155.124.107])
	by discorde.inria.fr (8.13.6/8.13.6) with ESMTP id l5RGE9oC032219
	for <caml-list@yquem.inria.fr>; Wed, 27 Jun 2007 18:14:10 +0200
Received: from [172.25.131.129] [38.96.172.125] by janestcapital.com
  (SMTPD-9.10) id ACE10214; Wed, 27 Jun 2007 12:14:25 -0400
Message-ID: <46828CCF.20901@janestcapital.com>
Date: Wed, 27 Jun 2007 12:14:07 -0400
From: Andrew Warshaver <awarshaver@janestcapital.com>
User-Agent: Thunderbird 2.0.0.0 (X11/20070505)
MIME-Version: 1.0
To: caml-list@yquem.inria.fr
Subject: ocamlbuild and c libraries
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 8bit
X-IMAIL-SPAM-VALFROM: (8ce1014900001203)
X-IMAIL-SPAM-VALREVDNS: (8ce1014900001203)
X-Miltered: at discorde with ID 46828CD1.000 by Joe's j-chkmail (http://j-chkmail . ensmp . fr)!
X-Spam: no; 0.00; intern:01 ocaml:01 cmx:01 cmo:01 cmx:01 -for-pack:01 cmo:01 -for-pack:01 intern:01 byte:01 bigarray:01 pcre:01 netstring:01 ocamlfind:01 ocamlfind:01 

For the most part I tried to follow Nicolas's example on the previous 
thread with similar name, but unfortunately I get an error that I do not 
entirely understand.

My target is intern/live_query/live_query.native.  It uses an ocaml/c 
library called jane that lives in janebase/lb (thanks Nicolas, for the 
renaming tip).  In there exists a jane.mlpack, and a libjane.clib.  Also 
there is a couple of _tags file:

$ cat janebase/lb/_tags
<*.cmx>: for-pack(Jane)
<*.cmo>: for-pack(Jane)
<jane.cmx>: -for-pack(Jane)
<jane.cmo>: -for-pack(Jane)
<cephes>: include
<jane.cm{x,}a>: use_libjane

$ cat intern/live_query/_tags
<{single,live}_query.{byte,native}>: use_jane (i also tried 
include_jane, this results in a different error message; in fact the 
same error if I omit this _tags altogether, it says undefined references 
in jane.o)

Also, myocamlbuild.ml :

$ cat myocamlbuild.ml
open Ocamlbuild_plugin;;
open Command;;

let packages = "bigarray,pcre,res,netstring"

let headers = ["janebase/lb/cephes/mconf.h"; 
"janebase/lb/cephes/protos.h"];;

let ocamlfind cmd =
   S [A "ocamlfind"; A cmd; A "-package"; A packages;
      A "-I"; A "+camlp4"; A "-pp"; A "camlp4orf";
      A "-pp"; A "camlp4o /home/awarshaver/multi-oc/lib/pa_type_conv.cmo 
/home/awarshaver/multi-oc/lib/pa_sexp_conv.cmo"];;

flag ["ocaml"; "compile"] (A"-thread");;
flag ["ocaml"; "link"; "program"] (S[A"-linkpkg"; A"-thread"]);;

dispatch begin function
   | After_options ->
       Options.ocamlc := ocamlfind "c";
       Options.ocamlopt := ocamlfind "opt";
       Options.ocamldep := ocamlfind "dep";
   | After_rules ->
       ocaml_lib "jane";

       flag ["link"; "library"; "ocaml"; "byte"; "use_libjane"]
         (S[A"-dllib"; A"-ljane"; A"-cclib"; A"-ljane"]);

       flag ["link"; "library"; "ocaml"; "native"; "use_libjane"]
         (S[A"-cclib"; A"-ljane"]);

       dep ["link"; "ocaml"; "use_libjane"] ["janebase/lb/libjane.a"];

       dep ["compile"; "c"] headers;
   | _ -> ()
end

I can build the library ok...

$ ocamlbuild janebase/lb/jane.cmxa
+ ocamlfind c -package bigarray,pcre,res,netstring -I +camlp4 -pp 
camlp4orf -pp 'camlp4o /home/awarshaver/multi-oc/lib/pa_type_conv.cmo 
/home/awarshaver/multi-oc/lib/pa_sexp_conv.cmo' -c janebase/lb/cephes/main.c
janebase/lb/cephes/main.c: In function ‘main’:
janebase/lb/cephes/main.c:9: warning: control reaches end of non-void 
function
Finished, 286 targets (0 cached) in 00:01:12.

But not my target..

$ ocamlbuild intern/live_query/live_query.native
Solver failed:
   Ocamlbuild knows of no rules that apply to a target named jane.cmx. 
This can happen if you ask Ocamlbuild to build a target with the wrong 
extension (e.g. .opt instead of .native) or if the source files live in 
directories that have not been specified as include directories.
Backtrace:
   - Failed to build the target intern/live_query/live_query.native
       - Building intern/live_query/live_query.native:
           - Building jane.a:
               - Failed to build all of these:
                   - Building jane.cmx
                   - Building jane.mllib
Compilation unsuccessful after building 358 targets (358 cached) in 
00:00:28.

Insights appreciated!

Thanks,
Andrew