Date: Thu, 28 Dec 2017 17:03:42 +0000 From: David Chisnall <theraven@FreeBSD.org> To: Tijl Coosemans <tijl@FreeBSD.org> Cc: Alexey Dokuchaev <danfe@FreeBSD.org>, Yuri <yuri@freebsd.org>, ports-committers@freebsd.org, svn-ports-all@freebsd.org, svn-ports-head@freebsd.org Subject: Re: svn commit: r457438 - head/devel/ispc Message-ID: <BA0983F3-25F7-4777-AC98-29295F5E95C8@FreeBSD.org> In-Reply-To: <20171228175548.1cce8ada@kalimero.tijl.coosemans.org> References: <201712280506.vBS56ZSj011894@repo.freebsd.org> <20171228071400.GA42910@FreeBSD.org> <a5b19d77-4a12-b11f-98aa-ffc94a6037e6@freebsd.org> <20171228133631.GB61460@FreeBSD.org> <20171228164809.GA33755@FreeBSD.org> <20171228175548.1cce8ada@kalimero.tijl.coosemans.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On 28 Dec 2017, at 16:55, Tijl Coosemans <tijl@FreeBSD.org> wrote: >=20 > On Thu, 28 Dec 2017 16:48:09 +0000 Alexey Dokuchaev = <danfe@FreeBSD.org> wrote: >> 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: =20 >>>> On 12/27/17 23:14, Alexey Dokuchaev wrote: =20 >>>>> 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. =20 >>>>=20 >>>> Please feel free to further update ISPC's clang dependency if you = feel >>>> this is needed for embree. =20 >>>=20 >>> 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=3D50 does not cause regressions (vs. 40). =20= >>=20 >> 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:(.t= ext+0x20e0): undefined reference to `backtrace' >> clang-5.0: error: linker command failed with exit code 1 (use -v to = seeinvocation) >>=20 >> 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? >=20 > "backtrace" is provided by libexecinfo. Note that recent versions of LLVM added a --system-libs flag to = llvm-config. On FreeBSD, this provides the relevant linker flags for = adding libexecinfo. Older projects may not have added this to their = build systems and will find that things mostly work on Linux (I don=E2=80=99= t think it adds anything for the most common build configurations). The = correct fix is likely to add this in the same place that they do = llvm-config --libs --ldflags or similar. David
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?BA0983F3-25F7-4777-AC98-29295F5E95C8>