Date: Mon, 19 Apr 2004 20:51:46 +0200 From: Erik Trulsson <ertr1013@student.uu.se> To: "Ziller, James" <James.Ziller@qg.com> Cc: "'freebsd-questions@freebsd.org'" <freebsd-questions@freebsd.org> Subject: Re: Dependency hell Message-ID: <20040419185145.GA2244@falcon.midgard.homeip.net> In-Reply-To: <025596A38A894B45AFE62346A6BF474609CBACD1@waexch1.qgraph.com> References: <025596A38A894B45AFE62346A6BF474609CBACD1@waexch1.qgraph.com>
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On Mon, Apr 19, 2004 at 01:34:34PM -0500, Ziller, James wrote: > So then is there a way that the ports/package system can automatically > handle replacing libfoo.so.3 with libfoo.so.4, so that packages compiled to > use libfoo.so.3 can use libfoo.so.4 instead (assuming the new version is > backward compatable)? You can't assume that. The version numbers of libraries are only supposed to be changed when the new version is *NOT* backwards compatible with the old. I.e. libfoo.so.4 is most likely not completely compatible with libfoo.so.3 and any programs that are compiled against libfoo.so.3 need to be recompiled to use libfoo.so.4 > Or can the port link against say libfoo.so (which > should be a symlink to the version of the library that's installed)? > > Thanks for the responses, > James > > -----Original Message----- > From: Charles Swiger [mailto:cswiger@mac.com] > Sent: Monday, April 19, 2004 1:18 PM > To: Ziller, James > Cc: 'freebsd-questions@freebsd.org' > Subject: Re: Dependency hell > > > On Apr 19, 2004, at 10:28 AM, Ziller, James wrote: > > So in other words I do have to recompile everything that depends on a > > given > > library just because that library is updated to a slightly newer > > version?:( > > Well, you could simply use the old version of the library. > > It's not especially hard to write code in a way that maintains upwards > compatibility-- putting a version # or sizeof(struct foo) in structures > being passed around helps!-- but some projects don't bother. > > -- > -Chuck > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" -- <Insert your favourite quote here.> Erik Trulsson ertr1013@student.uu.se
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