libllvmmc build is broken on i386

Hi,

I can't build current on i386 (last tried revision is 264886) for couple 
of days. Every time trying to build with making `make clean` and rm'ing 
/usr/obj first.

The first error is appearing when building MCAsmBackend.cpp:
"""
/../contrib/llvm/lib/MC/MCAsmBackend.cpp -o MCAsmBackend.o
In file included from 
/usr/src/lib/clang/libllvmmc/../../../contrib/llvm/lib/MC/MCAsmBackend.cpp:10:
In file included from 
/usr/src/lib/clang/libllvmmc/../../../contrib/llvm/include/llvm/MC/MCAsmBackend.h:13:
In file included from 
/usr/src/lib/clang/libllvmmc/../../../contrib/llvm/include/llvm/ADT/ArrayRef.h:14:
In file included from 
/usr/src/lib/clang/libllvmmc/../../../contrib/llvm/include/llvm/ADT/SmallVector.h:17:
In file included from 
/usr/src/lib/clang/libllvmmc/../../../contrib/llvm/include/llvm/Support/AlignOf.h:19:
In file included from /usr/include/c++/v1/cstddef:36:
/usr/include/c++/v1/__config:314:2: error: invalid preprocessing directive
"""

Here is the full buildlog: http://pastebin.com/mp4mrUTb

Thanks.

-- 
Regards,
Ruslan

T.O.S. Of Reality