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Date: Thu, 28 Dec 2017 16:48:09 +0000
From: Alexey Dokuchaev <danfe@FreeBSD.org>
To: Yuri <yuri@freebsd.org>
Cc: ports-committers@freebsd.org, svn-ports-all@freebsd.org,
 svn-ports-head@freebsd.org
Subject: Re: svn commit: r457438 - head/devel/ispc
Message-ID: <20171228164809.GA33755@FreeBSD.org>
References: <201712280506.vBS56ZSj011894@repo.freebsd.org>
 <20171228071400.GA42910@FreeBSD.org>
 <a5b19d77-4a12-b11f-98aa-ffc94a6037e6@freebsd.org>
 <20171228133631.GB61460@FreeBSD.org>
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On Thu, Dec 28, 2017 at 01:36:31PM +0000, Alexey Dokuchaev wrote:
> On Thu, Dec 28, 2017 at 01:29:20AM -0800, Yuri wrote:
> > On 12/27/17 23:14, Alexey Dokuchaev wrote:
> > > But just couple of days ago X.org/Mesa had switched to 5.0, and
> > > I'm not sure what to do about this yet.
> > 
> > Please feel free to further update ISPC's clang dependency if you feel
> > this is needed for embree.
> 
> Yes, that's probably the most straight way forward.  I'm now (re)building
> all the ports involved (that might take some time on my slow hardware) to
> verify that CLANG_VERSION=50 does not cause regressions (vs. 40).

We have a problem building `devel/ispc' againt LLVM 5.0:
  ...
  /usr/local/llvm50/lib/libLLVMSupport.a(Signals.cpp.o): In function `llvm::sys::PrintStackTrace(llvm::raw_ostream&)':
  /work/a/ports/devel/llvm50/work/llvm-5.0.0.src/lib/Support/Signals.cpp:(.text+0x20e0): undefined reference to `backtrace'
  clang-5.0: error: linker command failed with exit code 1 (use -v to seeinvocation)

It builds fine against LLVM 4.0.  Anyone got ideas (I'm too drunk to debug
this myself now) how do we proceed from here?

./danfe