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From: ludo@gnu.org (Ludovic Courtès)
To: Andreas Rottmann <a.rottmann@gmx.at>
Cc: guile-user@gnu.org
Subject: Re: FFI nuisance
Date: Wed, 02 Mar 2011 16:30:39 +0100	[thread overview]
Message-ID: <87pqq9k09s.fsf@gnu.org> (raw)
In-Reply-To: <87zkpdy3v1.fsf@gmx.at> (Andreas Rottmann's message of "Wed, 02 Mar 2011 15:49:22 +0100")

Hi,

Andreas Rottmann <a.rottmann@gmx.at> writes:

> ludo@gnu.org (Ludovic Courtès) writes:
>>
>> Aidan Gauland <aidalgol@no8wireless.co.nz> writes:
>>
>>> I'm trying to use SDL through Guile's dynamic FFI.  There's a slight
>>> nuisance with the procedure `dynamic-link': the name of the so file on
>>> my system (Debian squeeze) is `libSDL-1.2.so.0'
>>
>> Isn’t it a packaging bug?  There should be a
>> ‘libSDL-1.2.so’ -> ‘libSDL-1.2.so.0’ symlink.
>>
> Only in the -dev package, which should not be required for running Guile
> programs that excercise the FFI.  It is also good practice to use the
> entire SONAME of the library in the Guile program, as to avoid random
> breakage when the ABI changes (which does imply a SONAME bump on
> sanely-maintained libraries).

Unfortunately, I think this cannot be done portably, because the mapping
of a library’s set of supported interfaces to the SONAME and file name
is system-dependent, at least when using Libtool.

Thanks,
Ludo’.



  reply	other threads:[~2011-03-02 15:30 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-01  3:27 FFI nuisance Aidan Gauland
2011-03-02 10:47 ` Ludovic Courtès
2011-03-02 14:49   ` Andreas Rottmann
2011-03-02 15:30     ` Ludovic Courtès [this message]
2011-03-02 18:43     ` Aidan Gauland
2011-03-02 23:31       ` Andreas Rottmann
2011-03-30 17:21       ` Andy Wingo

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