-current cross compile for -stable

[LI Xin]

Danny Braniss wrote:
>> On Tue, Aug 28, 2007 at 12:19:42PM +0300, Danny Braniss wrote:
>>>> On 8/28/07, LI Xin <delphij at delphij.net> wrote:
>>>>> Danny Braniss wrote:
>>>>>> till now I used a stable box to cross compile for other
>>>>>> arch/stable|current.  today i decided to try out -current as  a
>>>>>> base to cross compile. does it work? since i get:
>>>>>>
>>>>>> export MAKEOBJDIRPREFIX=/r+d/obj/cs4
>>>>>> cd /r+d/6.2/src; make  TARGET_ARCH=amd64 buildworld
>>>>>> ...
>>>>> This won't work.  In order to build -STABLE you have to install a
>>>>> chrooted RELENG_6 environment and chroot into it to make it work.
>>>> I think there is a hack for ports' tinderbox, patch is at
>>>> http://www.marcuscom.com/downloads/binutils.diff
>>>> Not sure it appears in ports@ mailing or tinderbox's.
>>> well, I can confirm that it works. 1)I'm now testing the result
>>> by  using the result to make buildworld - goto 1 :-).
>>>
>>> so, if it works for tinderbox, and for me, can it be 'installed'?
>> There's no reason to - if you want to build RELENG_6 on a 7.x box, you
>> should have RELENG_6 chroot to do so.  You'll just keep running into
>> problems as we don't support builds the way you're trying.
> 
> one of the things that attracted me to FreeBSD was the fact that I could 
> cross-compile. I always, till now, used a RELENG as a base (solid? :-) to
> build CURRENT, but now, so close to releases, I decided to try the other way,
> just before upgrading.
> 
> So now I have some questions:
> 	- Is documented != supported?
> 	- is building on a RELENG for CURRRENT ok?

I think there is some misunderstanding.  The supported way is to
"upgrade", means to compile -CURRENT for instance, from a RELENG base;
the reverse, however, is not well "supported".  The "official" way to
cross compile older sources on a newer world is to create a chroot
environment.

Cheers,
-- 
Xin LI <delphij at delphij.net>	http://www.delphij.net/
FreeBSD - The Power to Serve!

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