Chromium build fails on Current (r233121)

[René Ladan]

2012/4/6 Lars Engels <lars.engels at 0x20.net>:
> On Mon, Apr 02, 2012 at 10:46:23AM +0200, René Ladan wrote:
>> 2012/4/2 Xin Li <delphij at delphij.net>:
>> > On 03/18/12 13:11, Lars Engels wrote:
>> >> Build of Chromium 17.0.963.79 fails to build on r233121, amd64:
>> >>
>> >> CXX(target)
>> >> out/Release/obj.target/webkit_gpu/webkit/gpu/webgraphicscontext3d_in_process_impl.o
>> >>
>> >>
>> > LINK(host) out/Release/protoc
>> >> AR(host) out/Release/obj.host/v8/tools/gyp/libv8_nosnapshot.a RULE
>> >> sync_proto_genproto_0
>> >> out/Release/pyproto/chrome/browser/sync/protocol/sync_pb2.py gmake:
>> >> *** [out/Release/pyproto/chrome/browser/sync/protocol/sync_pb2.py]
>> >> Floating point exception: 8 (core dumped) gmake: *** Waiting for
>> >> unfinished jobs.... *** [do-build] Error code 1
>> >>
>> >> Stop in /usr/ports/www/chromium. *** [build] Error code 1
>> >
>> > Hit the same thing and compiling with GCC46 either works around it, or
>> > fixed the problem.  Haven't investigated the underlying issue though.
>> >
>> Fixed probably, chromium also builds with top-of-tree clang (from upstream) with
>> http://trillian.chruetertee.ch/chromium/changeset/318 applied.
>
> Unfortunately it's still not fixed for me. Building with CLANG:
>
>  LINK(host) out/Release/protoc
>  LINK(host) out/Release/protoc: Finished
>  AR(host) out/Release/obj.host/v8/tools/gyp/libv8_nosnapshot.a
>  RULE sync_proto_genproto_0
> out/Release/pyproto/chrome/browser/sync/protocol/app_notification_specifics_pb2.py
> gmake: ***
> [out/Release/pyproto/chrome/browser/sync/protocol/app_notification_specifics_pb2.py]
> Floating point exception: 8 (core dumped)
>
> # clang -v
> FreeBSD clang version 3.0 (tags/RELEASE_30/final 145349) 20111210
> Target: x86_64-unknown-freebsd10.0
> Thread model: posix
>
Your  clang is probably too old, clang/llvm from upstream trunk worked for me.
The clang in base contains a bug which miscompiles protoc resulting in
the SIGFPE even
with the patch added in the last commit.

René