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Date: Fri, 30 Dec 2011 16:25:09 -0800
From: Maxim Sobolev <sobomax@FreeBSD.org>
Organization: Sippy Software, Inc.
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Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org,
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Subject: Re: svn: head/sys/netinet
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On 12/30/2011 4:17 PM, Maxim Sobolev wrote:
>> M>  Won't this break whole lot of third-party software, which expects
>> M>  FreeBSD to be slightly different in this regards? Just curious.
>>
>> Yes it does. And until FreeBSD 10.0-RELEASE there is time to fix
>> this software (at least in ports).
>>
>> The MFC to stable/9 of r226105 was back out.
>
> Well, I am just curious how critical it is to get it resolved and is
> there any way to avoid ABI breakage. Software compiled for 9.x won't run
> on 10.x even when fitted with the proper compat libs, as far as I can
> tell and not all software can be easily recompiled.

P.S. It should be trivial to put some COMPAT_8/COMPAT_9 shims based on 
the version of the ELF image (i.e. detect if the binary is < than 
FreeBSD 10.

-Maxim