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Date: Sun, 21 May 2006 19:08:15 -0700
From: Julian Elischer <julian@elischer.org>
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To: Daniel Eischen <deischen@freebsd.org>
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Cc: re@freebsd.org, Hajimu UMEMOTO <ume@freebsd.org>, current@freebsd.org
Subject: Re: Shared library version bump?
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Daniel Eischen wrote:

> On Sun, 21 May 2006, Julian Elischer wrote:
>
>> Hajimu UMEMOTO wrote:
>>
>>> deischen> Go ahead.  Just realize though, that after 7.0 is released
>>> deischen> you will have to support any ABI from then on without version
>>> deischen> bumps (meaning, you have to keep shims for any old 7.0+ ABIs
>>> deischen> in libc).
>>>
>>> ume> Okay, I'll do.
>>>
>>
>> I assume htat EVENTUALLY we will bump numbers again when something 
>> sufficiently
>> big needs to be done to the ABI.
>
>
> Symbol versioning is suppose to allow one library to support different
> ABIs, so the hope is that we will never have to bump libc's version
> number.  If you change ABI, you still have to keep the old code around
> (or some sort of compatability shims) in the library.
>
yes but that could get too big  a drain on resources oftetr  while 
(trying ot shim really old
stuff into really new stuff.) It might eventually get to a point where 
it would be good
to cut and run..