Re: how to mark llvm* forbidden?

From: Russell L. Carter <rcarter_at_pinyon.org>
Date: Wed, 5 Apr 2017 18:18:37 -0700
On 04/05/17 15:32, Chris H wrote:
> On Wed, 5 Apr 2017 21:51:40 +0000 Brooks Davis <brooks_at_freebsd.org> wrote
> 
>> On Wed, Apr 05, 2017 at 11:42:16AM -0700, Chris H wrote:
>>> OK I'm chasing -CURRENT, and I performed an initial
>>> install, followed by a new world/kernel && ports about a
>>> mos ago. Last Friday, I svn upped the system (src && ports),
>>> rebuilt/installed world/kernel. I just began rebuilding
>>> the ports, only to find that when finished, I will likely
>>> end up with every version of llvm && clang from version 3
>>> to the now current 4. My build session is currently tying
>>> nearly every core on the CPU with llvm builds. Given that
>>> llvm4 comes in base. Is there *any* reason I can not insist
>>> that the ports I upgrade, or build, just use the version(s)
>>> of clang/llvm in base? If so. How do I inform the ports
>>> that they may *only* use the version(s) in base?
>>
>> In general you can't.  There are many reasons including: the base llvm
>> doesn't include the requisite cmake bits for cmake based ports, some
>> ports use unstable APIs and require specific LLVM versions, and some use
>> LLVM tools or libraries that aren't built/installed as part of the base
>> system.
>>
>> There are probably some ports where the base clang is fine but that's
>> probably mostly down to someone getting USES variables right.
>>
>> -- Brooks
> Grumble.. That's what I was afraid I might hear.
> 
> Thanks, Brooks! Even if it's not what I was hoping to hear. :)

FWIW, this is biting me hard right now too.  I feel your
pain...  I'm a c++17 junky but I might have to let go of
llvm-devel.

Russell


> --Chris
> 
> 
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Received on Wed Apr 05 2017 - 23:27:11 UTC

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