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Date: Fri, 13 Jan 2012 17:13:31 +0200
Message-ID: <CA+dUSyobDRgtRZi+L_kDnXwkixCs6waCyk0-rOiD=8a0ViCbKA@mail.gmail.com>
From: George Kontostanos <gkontos.mail@gmail.com>
To: Kostik Belousov <kostikbel@gmail.com>, Andriy Gapon <avg@freebsd.org>, 
	Johan Hendriks <joh.hendriks@gmail.com>,
	FreeBSD-Current <freebsd-current@freebsd.org>, 
	freebsd-stable <freebsd-stable@freebsd.org>
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Subject: Re: FreeBSD 9 & recompile ports
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On Fri, Jan 13, 2012 at 4:18 PM, Kostik Belousov <kostikbel@gmail.com> wrote:
> On Fri, Jan 13, 2012 at 04:11:22PM +0200, Andriy Gapon wrote:
>> on 13/01/2012 14:57 George Kontostanos said the following:
>> > Still the question remains regarding COMPAT_FREEBSD8 and how does this
>> > affects ports/misc/compat8x/
>>
>> Looks like all the previous hints have not been clear enough.
>> There is no direct relation between COMPAT_FREEBSD8 and misc/compat8x.
>> COMPAT_FREEBSD<X> options are only needed when going from release X to release X+1
>> there was a change to an existing system call at the kernel-userland boundary.
>> A side note: kernel options affect only what's in the kernel, quite obviously.
>> misc/compat<X>x contains versions of shared libraries from release X that are no
>> longer present in X+1.
>
> Additional twist is that not every change at the kernel/usermode boundary
> is covered with backward-compatibility shims. Recent example is the CAM
> ABI change, which makes libcam.so.5 from the compat8x useless.

Thanks to all for your input.

It looks quite obvious to me know and I think this clears any further confusion.

Best Regards,

George