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From: Steve Long <slong@rathaus.eclipse.co.uk>
To: gentoo-project@lists.gentoo.org
Subject: [gentoo-project]  Re: ABI deps and DEPEND labelling
Date: Thu, 21 Aug 2008 16:54:32 +0100	[thread overview]
Message-ID: <g8k39a$qje$1@ger.gmane.org> (raw)
In-Reply-To: 20080819214543.13e532be@googlemail.com

Ciaran McCreesh wrote:

> On Tue, 19 Aug 2008 21:35:35 +0100
> Steve Long <slong@rathaus.eclipse.co.uk> wrote:
>> Posting to project as I think this stuff needs input from users as
>> well as devs. (Many users have a lot of experience with embedded dev
>> and ABI quirks.)
>> Flameeyes posted here about ABI deps:
>>
http://blog.flameeyes.eu/articles/2008/08/18/same-abi-and-any-abi-dependencies
>> ..which reminded me a lot of:
>> http://bugs.gentoo.org/show_bug.cgi?id=201499
>> 
>> Not really fussed about how it's resolved, so long as we get some
>> sort of correct link dependency information (which compile-against is
>> not.) OFC that probably means we'll never get correct LDEPENDs but
>> such is life ;)
>> 
>> What do others reckon about resolving ABI stuff, especially for
>> cross-dev and multi-lib/testing?
> 
> You might find http://kloeri.livejournal.com/6771.html useful too.
> 
Actually I found it depressing; you'll be wanting credit for readelf next..

http://git.exherbo.org/?p=exherbo.git;a=tree;f=scratch/multilib was a more
useful link, from which I got this:

 * econf now looks in ${S} for a configure script, as well as . and 
   ${ECONF_SOURCE}.
 * extra variables: ABI_CLASSES="C python ruby", for example, and C_ABIS,
   python_ABIS, ruby_ABIS. Also C_ABI, python_ABI, ruby_ABI for primary ABI
in
   each class.
 * additional functions: switch_abi_env, get_abi_var, with_all_abis

I recommend Gentoo people look at the notes file in the above dir.

One thing that puzzles me is I never see .so versioning mentioned, eg
libc.so.5 vs .6 linking to latest providing specified ABI.





  reply	other threads:[~2008-08-21 15:58 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-19 20:35 [gentoo-project] ABI deps and DEPEND labelling Steve Long
2008-08-19 20:45 ` Ciaran McCreesh
2008-08-21 15:54   ` Steve Long [this message]
2008-08-21 16:07     ` [gentoo-project] " Ciaran McCreesh
2008-08-23 15:06       ` [gentoo-project] " Steve Long
2008-08-19 20:52 ` [gentoo-project] " David Leverton
2008-08-21 16:27   ` [gentoo-project] " Steve Long

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