Gcc [trunk revision 208847] failed to bootstrap on x86_64!

[H.J. Lu Intel64 Core i7]

cd bld; \
 RUNTESTFLAGS="--target_board='unix{-m32,}'" ../src-trunk/configure \
	--with-arch=corei7 --with-cpu=corei7 --prefix=/usr/4.9.0 --enable-clocale=gnu --with-system-zlib --enable-shared --with-demangler-in-ld --with-fpmath=sse --enable-languages=c,c++,fortran,java,lto,objc
checking build system type... x86_64-unknown-linux-gnu
checking host system type... x86_64-unknown-linux-gnu
checking target system type... x86_64-unknown-linux-gnu
checking for a BSD-compatible install... /bin/install -c
    grep "Error " makelog.208847.trunk.x86_64.corei7 >> makelog.208847.trunk.x86_64.corei7.mail; \
make[4]: *** [configure-target-libcilkrts] Error 1
make[3]: *** [bootstrap] Error 2
make[2]: *** [bootstrap] Error 2
yes
checking alloca.h usability... checking whether read-only mmap of a plain file works... yes
checking whether mmap from /dev/zero works... yes
checking for MAP_ANON(YMOUS)... yes
checking whether mmap with MAP_ANON(YMOUS) works... yes
checking whether byte ordering is bigendian... yes
checking alloca.h presence... yes
checking for alloca.h... yes
checking link.h usability... yes
checking link.h presence... no
yes
checking for link.h... yes
checking whether strnlen is declared... checking for strtoull... yes
config.status: creating Makefile
yes
configure: updating cache ./config.cache
configure: creating ./config.status
checking for memalign... config.status: creating testsuite/Makefile
config.status: creating auto-config.h
config.status: executing default-1 commands
yes
checking for posix_memalign... Adding multilib support to Makefile in ../../../../src-trunk/libatomic
with_multisubdir=32
config.status: executing depfiles commands
yes
checking for getauxval... config.status: executing libtool commands
config.status: executing gstdint.h commands
yes
config.status: executing depfiles commands
config.status: executing libtool commands
checking whether the target supports thread-local storage... config.status: executing gstdint.h commands
config.status: creating Makefile
config.status: creating libsanitizer.spec
config.status: creating libbacktrace/backtrace-supported.h
config.status: creating interception/Makefile
yes
checking whether the target supports hidden visibility... yes
checking whether the target supports dllexport... no
checking whether the target supports symbol aliases... Adding multilib support to interception/Makefile in ../../../../src-trunk/libsanitizer
with_multisubdir=32
config.status: creating sanitizer_common/Makefile
yes
checking for ld used by /export/gnu/import/git/gcc-test-intel64corei7/bld/./gcc/xgcc -B/export/gnu/import/git/gcc-test-intel64corei7/bld/./gcc/ -B/usr/4.9.0/x86_64-unknown-linux-gnu/bin/ -B/usr/4.9.0/x86_64-unknown-linux-gnu/lib/ -isystem /usr/4.9.0/x86_64-unknown-linux-gnu/include -isystem /usr/4.9.0/x86_64-unknown-linux-gnu/sys-include  -m32... (cached) /export/gnu/import/git/gcc-test-intel64corei7/bld/./gcc/collect-ld
checking if the linker (/export/gnu/import/git/gcc-test-intel64corei7/bld/./gcc/collect-ld) is GNU ld... (cached) yes
checking for ld that supports -Wl,-M,mapfile... no
checking whether __AVX__ is declared... Adding multilib support to sanitizer_common/Makefile in ../../../../src-trunk/libsanitizer
with_multisubdir=32
config.status: creating libbacktrace/Makefile
no
checking for shared libgcc... yes
configure: versioning on shared library symbols is gnu
checking assembler .cfi pseudo-op support... Adding multilib support to libbacktrace/Makefile in ../../../../src-trunk/libsanitizer
with_multisubdir=32
config.status: creating lsan/Makefile
yes
checking how size_t is mangled... j
checking whether the target supports __sync_*_compare_and_swap... Adding multilib support to lsan/Makefile in ../../../../src-trunk/libsanitizer
with_multisubdir=32
config.status: creating asan/Makefile
yes
checking whether the target supports 64-bit __sync_*_compare_and_swap... no
checking if the assembler supports AVX... Adding multilib support to asan/Makefile in ../../../../src-trunk/libsanitizer
with_multisubdir=32
config.status: creating ubsan/Makefile
yes
checking if the assembler supports RTM... yes
checking whether weak refs work like ELF... yes
Adding multilib support to ubsan/Makefile in ../../../../src-trunk/libsanitizer
with_multisubdir=32
config.status: creating config.h
config.status: executing depfiles commands
configure: updating cache ./config.cache
configure: creating ./config.status
config.status: executing default-1 commands
Adding multilib support to Makefile in ../../../../src-trunk/libsanitizer
with_multisubdir=32
config.status: executing libtool commands
config.status: executing gstdint.h commands
config.status: executing libtool commands
config.status: executing gstdint.h commands
config.status: creating Makefile
config.status: creating testsuite/Makefile
config.status: creating libitm.spec
config.status: creating config.h
config.status: executing default-1 commands
Adding multilib support to Makefile in ../../../../src-trunk/libitm
with_multisubdir=32
config.status: executing depfiles commands
config.status: executing libtool commands
config.status: executing gstdint.h commands
config.status: executing depfiles commands
config.status: executing libtool commands
config.status: executing gstdint.h commands
make[4]: Leaving directory `/export/gnu/import/git/gcc-test-intel64corei7/bld'
make[3]: *** [bootstrap] Error 2
make[3]: Leaving directory `/export/gnu/import/git/gcc-test-intel64corei7/bld'
9084.83user 313.96system 25:02.23elapsed 625%CPU (0avgtext+0avgdata 649844maxresident)k
106544inputs+14829296outputs (43major+176619018minor)pagefaults 0swaps
make[2]: *** [bootstrap] Error 2
make[2]: Leaving directory `/export/gnu/import/git/gcc-test-intel64corei7'