Parallel buildworld broken by clang

It seems that a parallel buildworld is broken by clang.

% cd /usr/src
% svn update
% svn info 
Path: .
Working Copy Root Path: /usr/src
URL: svn://svn.freebsd.org/base/head
Repository Root: svn://svn.freebsd.org/base
Repository UUID: ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Revision: 245280
% make -j 5 buildworld
...
===> lib/clang/include (installincludes)
sh /usr/src/tools/install.sh -C -o root -g wheel -m 444  /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/__wmmintrin_aes.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/__wmmintrin_pclmul.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/altivec.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/ammintrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/avx2intrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/avxintrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/bmi2intrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/bmiintrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/cpuid.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/emmintrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/f16cintrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/fma4intrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/fmaintrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/immintrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/lzcntintrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/mm3dnow.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/mm_malloc.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/mmintrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/module.map /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/nmmintrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/pmmintrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/popcntintrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/rtmintrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/smmintrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/tmmintrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/wmmintrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/x86intrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/xmmintrin.h /usr/src/lib/clang/include/../../../contrib/llvm/tools/clang/lib/Headers/xopintrin.h /usr/obj/usr/src/tmp/usr/include/clang/3.2
1 error
*** [_includes] Error code 2
1 error
*** [buildworld] Error code 2
1 error
hpc:root:exit:[212] 

-- 
Steve