Building and Iterating

[Bryan Drewery]

On 6/20/2018 2:00 PM, Bryan Drewery wrote:
> On 6/1/2018 10:20 AM, Sean Bruno wrote:
>> Before I dive into the mk files of a buildworld, I'd like to describe
>> "what I want" so as to start a discussion of my goal.
>>
>> 1.  If I select no toolchain (WITHOUT_TOOLCHAIN), but clang needs to be
>> built, only build a toolchain that targets the ARCH being requested.
>>
>> 2.  If I select no toolchain (WITHOUT_TOOLCHAIN), but clang needs to be
>> built, give me a knob to turn that aborts the build with a meaningful
>> message that lets me know I need to update the toolchain on my buildbox.
>>
> 
> https://reviews.freebsd.org/D11077 has this but I suspect it's wildly
> stale already.
> 
> Also having a knob like this would ultimately lead to someone making
> their /usr/bin/cc less useful for optimizations like WITH_SYSTEM_COMPILER.
> 
>> 3.  If the boostrap toolchain needs to be built in the normal case, only
>> target the ARCH being requested.  I understand that we "want" a CC
>> installed that targets all architectures and this is something I agree with.
>>
> 
> Hm yes there is no real reason to have multi-arch support in the
> WORLDTMP compiler.  Though I do have a pending patch to build clang
> *once* for universe that relies on this full-arch-support behavior but
> I'm sure it's trivial to continue using it for that piece.
> 
> 

For the archives, a lot of this is effectively done now. See
https://lists.freebsd.org/pipermail/freebsd-current/2018-June/069994.html


-- 
Regards,
Bryan Drewery

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