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Date: | Sun, 15 Feb 2015 10:18:19 +0100 |
From: | Corinna Vinschen <corinna-cygwin AT cygwin DOT com> |
To: | cygwin AT cygwin DOT com |
Subject: | Re: __mempcpy |
Message-ID: | <20150215091819.GD7225@calimero.vinschen.de> |
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--6c2NcOVqGQ03X4Wi Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Feb 14 23:17, Marco Atzeri wrote: > On 2/14/2015 10:58 PM, V=C3=A1clav Zeman wrote: > >On 14.2.2015 22:55, V=C3=A1clav Zeman wrote: > >>On 14.2.2015 09:20, Marco Atzeri wrote: > >>>I am trying to upgrade proftpd and also build the 64bit version. > >>>However when building the 64bit one, I catch: > >>> > >>>/pub/devel/proftpd/proftpd-1.3.5-1.x86_64/build/lib/pr_fnmatch_loop.c:= 1142: > >>>undefined reference to `__mempcpy' > >>> > >>>I see this difference in exported symbols for the the two archs > >>> > >>>32bit > >>>$ nm /usr/lib/libcygwin.a |grep " T " |sort | grep mempcpy > >>>00000000 T ___mempcpy > >>>00000000 T _mempcpy > >>> > >>>64bit > >>>$ nm /usr/lib/libcygwin.a |grep " T " |sort | grep mempcpy > >>>0000000000000000 T mempcpy > >>> > >>> > >>>any idea ? > >> > >>`__memcpy()` is their invention: >=20 > you missed the point >=20 > __mempcpy is exported by cygwin lib at 32bit > but not at 64 bit. >=20 > For both the the two arch HAVE_MEMPCPY is defined. The 32 bit variant exports lots of underscored versions of standard POSIX functions for historical reasons. We didn't want to reproduce this for the 64 bit version so the whole lot was restricted to the 32 bit export definition file. However, __mempcpy is a GNU symbol just as the non-underscored variant. This has gone unnoticed when we created the export definitions for 64 bit. I fixed that in CVS. Thanks, Corinna --=20 Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer cygwin AT cygwin DOT com Red Hat --6c2NcOVqGQ03X4Wi Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBAgAGBQJU4GRbAAoJEPU2Bp2uRE+gW/AP/1s6xvc4aAd+cBVRJysPvD83 Zx2VZqKJ6GZzvVErbvlxEsd/pexcENaJS7ZCRae5d6tnMdfpWvUUFKfTztYU38rp 6MW85rOaCIaqwxgTneAlg5ZYo68oBIdP6vlgFKqDBz3jw5gbSAWzID7qsJ3CvMki gGoeL/PwhK1gJW9DU8hghR2PNyzp3zu4clOXSGecQCnZ6p398hgmDULsMiSwby3p 6GSL+VWuB5RJNeNlimlltwLMrTtNXElp0R1OqB7NA0yKaqMKqAv16gMpUwV+D8KB 2ZLNpoo7Ei7L3JfTVwla+/Vt5ZLv3MSoM2hlrMpmn2GN/DP9eKlDeQLufZUMQEKo qRtwCgWsjCYs4swW3K4/lFWuUjVFX0JDR70iCFXenJdSQrNAzlBGd3E6YoLHvaxb 1SlnSKRqYvq6yvGA842kUVuZL+rxZRy/8naJ7dTmf2BlglonL2ucg0wDSfjVClNt La0RQIMFzM+2LH8vID7Z3WO6etHWh+QjTv/diuVQNdrzu2bi5JNbsXg7AqaIooYm JS6bwmyykSlNCt2qASfOiic5e0OYjk0sgebS98Ok+LZv12xe4s9DOsxhDz21heOX 049QFotMCnVyb5U2wYnCX17VDsf4TmdleWdS3qMwujcLtImu5RS7GiEA9XMvs1vf NWbLErAK/OV5tyLRbULj =aTb7 -----END PGP SIGNATURE----- --6c2NcOVqGQ03X4Wi--
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