X-Recipient: archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status: No, hits=-6.9 required=5.0	tests=AWL,BAYES_00,RCVD_IN_DNSWL_HI,SPF_HELO_PASS,T_RP_MATCHES_RCVD
X-Spam-Check-By: sourceware.org
Message-ID: <4C2A697F.5020402@redhat.com>
Date: Tue, 29 Jun 2010 15:45:35 -0600
From: Eric Blake <eblake AT redhat DOT com>
User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.10) Gecko/20100621 Fedora/3.0.5-1.fc13 Lightning/1.0b2pre Mnenhy/0.8.2 Thunderbird/3.0.5
MIME-Version: 1.0
To: cygwin AT cygwin DOT com
Subject: Re: Shared libraries in Cygwin
References: <596920 DOT 90071 DOT qm AT web113516 DOT mail DOT gq1 DOT yahoo DOT com>
In-Reply-To: <596920.90071.qm@web113516.mail.gq1.yahoo.com>
Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------enig453C09CD02C0E123217FBD3A"
X-IsSubscribed: yes
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com

--------------enig453C09CD02C0E123217FBD3A
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

On 06/29/2010 03:43 PM, Refr Bruhl wrote:
>=20
> Question
>=20
> Since I get the message below does this mean cygwin cannot compile shared=
 libraries?

Quite the contrary - cygwin1.dll is a shared library, which means not
only can cygwin compile shared libraries, but it depends on them!

> Or if a shared library is defined special action needs to be taken for
cygwin?

The special action being that all symbols must be defined in advance.

>=20
>=20
> libtool: link: warning: undefined symbols not allowed in i686-pc-cygwin s=
hared libraries

Look into the documentation of the -no-undefined flag of libtool, and
make sure you are using it.

--=20
Eric Blake   eblake AT redhat DOT com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org


--------------enig453C09CD02C0E123217FBD3A
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.14 (GNU/Linux)
Comment: Public key at http://people.redhat.com/eblake/eblake.gpg
Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/

iQEcBAEBCAAGBQJMKml/AAoJEKeha0olJ0NqIo0H/jXpEcTBJfoC7KYkLIJs+lot
RhDSxhXoe2vcc/mR02xYitdMYFsv1H22hnHSMAXj3bo2oWlzQhTqkaDbybxfN5KR
RAwPDUgf+9s59ZxnMC5tpBc+XjqqH/pKfJmBXC8ND9SGFzwYB0jxtjtUaZMhihlR
1GcHBKG7MbQGsFt5AjXBEdumz62QLHb8pWSAXhccOn0XCCgokrcPGcRdbhN3VQzM
JBZVcD5zvmG2KGWlzMkBSaEoJ9aTpupnkRa5asjyWClq2Ci5yJZRxwY5f/vWr1C9
rbCf+A4RY31dPLaU1wonGgqdduUdaRkro6ut5xIpdwex3tWV8e7a6VD8OmFixts=
=FZ9P
-----END PGP SIGNATURE-----

--------------enig453C09CD02C0E123217FBD3A--