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From: Xavier Leroy <Xavier.Leroy@inria.fr>
To: salex@dsl.cis.upenn.edu (Scott Alexander)
Cc: caml-list@inria.fr
Subject: Re: dynamic linking and C libraries
Date: Tue, 10 Feb 1998 21:23:52 +0100 (MET)	[thread overview]
Message-ID: <199802102023.VAA17664@pauillac.inria.fr> (raw)
In-Reply-To: <199801270354.WAA08593@codex.cis.upenn.edu> from Scott Alexander at "Jan 26, 98 10:54:58 pm"

> I am having a problem when I try to dynamically link code which uses
> functions from C libraries (externals).  I sometimes get a message like:
> 
> The external function `is_digit_odd' is not available
> 
> My workaround for this is to call the function in some statically linked
> part of the program.  Is there a better fix for this problem?

Try using the "-linkall" option to ocamlc when linking your main
application (the one that does the dynamic linking).

The "-linkall" option disables the normal elimination of unused
modules and C primitives, and makes sure that all the modules and
libraries you mention on the command line are linked in and thus
available to dynamically-linked code.  (The accompanying C primitives
are dragged in the executable along the way.)

Hope this helps.

- Xavier Leroy





      reply	other threads:[~1998-02-13 19:42 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1998-01-27  3:54 Scott Alexander
1998-02-10 20:23 ` Xavier Leroy [this message]

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