Gcc [trunk revision 166202] failed to boostrap on i686!

[H.J. Lu Intel64]

mkdir -p bld
cd bld; \
	 CC="gcc -m32" CXX="g++ -m32" ../src-trunk/configure \
		 --enable-clocale=gnu --with-system-zlib --enable-shared --with-demangler-in-ld i686-linux -with-plugin-ld=ld.gold --enable-gold --with-fpmath=sse 
configure: WARNING: you should use --build, --host, --target
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
	    grep "Error " makelog.166202.trunk.i686 >> makelog.166202.trunk.i686.mail; \
make[5]: *** [configure-stage1-lto-plugin] Error 1
make[4]: *** [stage1-bubble] Error 2
make[3]: *** [bootstrap] Error 2
make[2]: *** [bootstrap] Error 2
checking whether to build shared libraries... yes
checking whether to build static libraries... yes
checking how to run the C++ preprocessor... g++ -m32 -E
checking for ld used by g++ -m32... ld
checking if the linker (ld) is GNU ld... yes
checking whether the g++ -m32 linker (ld) supports shared libraries... yes
checking for g++ -m32 option to produce PIC... -fPIC -DPIC
checking if g++ -m32 PIC flag -fPIC -DPIC works... yes
checking if g++ -m32 static flag -static works... yes
checking if g++ -m32 supports -c -o file.o... yes
checking if g++ -m32 supports -c -o file.o... (cached) yes
checking whether the g++ -m32 linker (ld) supports shared libraries... yes
checking dynamic linker characteristics... (cached) GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking for as... /usr/local/bin/as
checking what assembler to use... /usr/local/bin/as
checking for ld... /usr/local/bin/ld
checking whether we are using gold... no
checking what linker to use... /usr/local/bin/ld
checking for nm... /usr/local/bin/nm
checking what nm to use... /usr/local/bin/nm
checking for objdump... /usr/local/bin/objdump
checking what objdump to use... /usr/local/bin/objdump
checking for readelf... /usr/local/bin/readelf
checking what readelf to use... /usr/local/bin/readelf
checking assembler flags... --32
checking assembler for .balign and .p2align... yes
checking assembler for .p2align with maximum skip... yes
checking assembler for .literal16... no
checking assembler for working .subsection -1... yes
checking assembler for .weak... yes
checking assembler for .weakref... yes
checking assembler for .nsubspa comdat... no
checking assembler for .hidden... yes
checking linker for .hidden support... yes
checking linker read-only and read-write section mixing... read-write
checking assembler for .sleb128 and .uleb128... yes
checking assembler for cfi directives... yes
checking assembler for working cfi advance... yes
checking assembler for cfi personality directive... yes
checking assembler for cfi sections directive... yes
checking assembler for eh_frame optimization... yes
checking assembler for section merging support... yes
checking assembler for COMDAT group support... yes
checking assembler for line table discriminator support... yes
checking assembler for thread-local storage support... yes
checking linker -Bstatic/-Bdynamic option... yes
checking linker --demangle support... yes
checking assembler for filds and fists mnemonics... yes
checking assembler for fildq and fistpq mnemonics... yes
checking assembler for cmov syntax... no
checking assembler for ffreep mnemonic... yes
checking assembler for .quad directive... yes
checking assembler for sahf mnemonic... yes
checking assembler for swap suffix... yes
checking assembler for different section symbol subtraction... yes
checking assembler for GOTOFF in data... yes
checking assembler for rep and lock prefix... yes
checking assembler for dwarf2 debug_line support... yes
checking assembler for buggy dwarf2 .file directive... no
checking assembler for --gdwarf2 option... yes
checking assembler for --gstabs option... yes
checking assembler for --debug-prefix-map option... yes
checking assembler for .lcomm with alignment... no
checking assembler for gnu_unique_object... yes
checking assembler for tolerance to line number 0... yes
checking linker PT_GNU_EH_FRAME support... yes
checking linker position independent executable support... yes
checking linker EH-compatible garbage collection of sections... yes
checking linker --as-needed support... yes
checking linker --build-id support... yes
checking linker *_sol2 emulation support... no
checking linker --sysroot support... yes
checking __stack_chk_fail in target C library... yes
Using ggc-page for garbage collection.
checking whether to enable maintainer-specific portions of Makefiles... no
Links are now set up to build a native compiler for i686-pc-linux-gnu.
checking for exported symbols... yes
checking for -rdynamic... yes
checking for library containing dlopen... -ldl
checking for -fPIC -shared... yes
configure: updating cache ./config.cache
configure: creating ./config.status
config.status: creating as
config.status: creating collect-ld
config.status: creating nm
config.status: creating Makefile
config.status: creating ada/gcc-interface/Makefile
config.status: creating ada/Makefile
config.status: creating auto-host.h
config.status: executing default commands
make[5]: Leaving directory `/export/gnu/import/svn/gcc-test/bld'
make[4]: *** [stage1-bubble] Error 2
make[4]: Leaving directory `/export/gnu/import/svn/gcc-test/bld'
make[3]: *** [bootstrap] Error 2
make[3]: Leaving directory `/export/gnu/import/svn/gcc-test/bld'
13.81user 11.65system 0:16.98elapsed 150%CPU (0avgtext+0avgdata 83792maxresident)k
17312inputs+50128outputs (34major+6822183minor)pagefaults 0swaps
make[2]: *** [bootstrap] Error 2
make[2]: Leaving directory `/export/gnu/import/svn/gcc-test'