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Date: Tue, 24 Apr 2001 11:23:38 +0200
To: Gerd Stolpmann <gerd@gerd-stolpmann.de>
Cc: Steve Stevenson <steve@cs.clemson.edu>, caml-list@inria.fr
Subject: Re: [Caml-list] Help using unix library?
Message-ID: <20010424112338.A6472@lambda.u-strasbg.fr>
References: <15071.19327.151495.618688@merlin.cs.clemson.edu> <01042321574905.02753@ice>
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In-Reply-To: <01042321574905.02753@ice>; from gerd@gerd-stolpmann.de on Mon, Apr 23, 2001 at 09:52:01PM +0200
From: Sven LUTHER <luther@dpt-info.u-strasbg.fr>
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On Mon, Apr 23, 2001 at 09:52:01PM +0200, Gerd Stolpmann wrote:
> On Thu, 19 Apr 2001, Steve Stevenson wrote:
> >Good afternoon:
> >
> >     I have references to the unix library using ocaml 3.01. The make
> >file has
> >
> >     ebv0: $(BASICOBJECTS)
> >	ocamlc -g -o ebv0 unix.cma $(BASICOBJECTS)
> >	cp ebv0 Test/ebv0
> >
> >where BASICOBJECTS are all ocaml .cmo files. The complaint is
> >
> >Fatal error: this bytecode file cannot run on this bytecode interpreter
> >Mismatch on primitive `unix_dup'
> >
> >Does this sound like an installation problem or a mistake in my
> >coding? I'm not using dup.
> 
> Try
> 
> ocamlc -custom -g -o ebv0 unix.cma $(BASICOBJECTS)
> 
> This makes ebv0 a bit larger, but avoids that problem because ebv0 contains the
> bytecode interpreter that is able to execute the code. By default (without
> -custom), the generated executable uses the distributed ocamlrun interpreter.

But you loose the portability of the bytecode by doing this. This may not be a
problem for you though.

Friendly,

Sven Luther
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