From owner-freebsd-ports@FreeBSD.ORG Tue Mar 7 18:42:11 2006 Return-Path: X-Original-To: freebsd-ports@FreeBSD.org Delivered-To: freebsd-ports@FreeBSD.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 90C2A16A420 for ; Tue, 7 Mar 2006 18:42:11 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4662543D45 for ; Tue, 7 Mar 2006 18:42:11 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: from obsecurity.dyndns.org (elvis.mu.org [192.203.228.196]) by elvis.mu.org (Postfix) with ESMTP id 2F8921A4E5C; Tue, 7 Mar 2006 10:42:11 -0800 (PST) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 679335186D; Tue, 7 Mar 2006 13:42:10 -0500 (EST) Date: Tue, 7 Mar 2006 13:42:10 -0500 From: Kris Kennaway To: Kris Kennaway , pfgshield-freebsd@yahoo.com, freebsd-ports@FreeBSD.org Message-ID: <20060307184210.GA33347@xor.obsecurity.org> References: <20060220041815.3229.qmail@web32907.mail.mud.yahoo.com> <20060220043813.GA82552@xor.obsecurity.org> <20060307183756.GD73973@isis.sigpipe.cz> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="/04w6evG8XlLl3ft" Content-Disposition: inline In-Reply-To: <20060307183756.GD73973@isis.sigpipe.cz> User-Agent: Mutt/1.4.2.1i Cc: Subject: Re: amd64 and -fPIC X-BeenThere: freebsd-ports@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting software to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 07 Mar 2006 18:42:11 -0000 --/04w6evG8XlLl3ft Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Mar 07, 2006 at 07:37:56PM +0100, Roman Neuhauser wrote: > # kris@obsecurity.org / 2006-02-19 23:38:13 -0500: > > On Mon, Feb 20, 2006 at 05:18:15AM +0100, pfgshield-freebsd@yahoo.com w= rote: > > > Hi; > > >=20 > > > amd64 has a rather nasty issue: in order to mix shared and static lib= raries > > > everything has to be built with -fPIC. Most ports are either static o= r dynamic > > > so it's usually not a problem, but I'm stating to find problems in th= e math > > > section: packages like arpack and glpk are only built static and with= out -fPIC. > > > And lately we are only building the dynamic version of ATLAS so packa= ges that > > > use many math libraries will have problems on amd64. > > >=20 > > > Someone would say the easy way out of this would be to add -fPIC to e= verything > > > by default, which works, but has some performance issues. If someone = has a > > > better solution I would like to hear it (please!) but if not I would = like to > > > suggest instead a general guideline: > > >=20 > > > If the package includes a library that might be used frequently and d= oesn't > > > include a shared version please add -fPIC to the amd64 version of the= port, for > > > example for math/arpack (and feel free to commit this): > >=20 > > The best solution is to make the port also build a shared version; > > it's usually not that difficult to modify the makefile. That way you > > don't have to add nasty hacks. >=20 > That doesn't solve the problem, which is: the static library is > almost useless, and users might actually want or need to use the > static library. Why do you say it's useless? The point of a static library is for static linking, and this works fine on amd64 or any other architecture. > net/libpcap only installs lib/libpcap.so if you install into /usr, > probably because all the dependent ports would need to be taught > to look in /usr/local/lib first. I don't know what you're saying here. > misc/ossp-uuid's ${PREFIX}/lib/libuuid.a (it configures with > --disable-shared) cannot be used in shared libraries on amd64 > because the port doesn't use -fPIC on this platform. The bug is presumably the --disable-shared. > Ports that install static libraries *need* to use -fPIC on amd64. No, they need to also install shared libraries. Kris --/04w6evG8XlLl3ft Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.1 (FreeBSD) iD8DBQFEDdQCWry0BWjoQKURAo18AKDu/BRLRjVYUhnBfG6pQV/q/kPG7wCfWJGd ucI/O9TXCZSC04CHZHA2hek= =O2lb -----END PGP SIGNATURE----- --/04w6evG8XlLl3ft--