Gcc [trunk revision 216501] failed to bootstrap on x86_64!

[H.J. Lu X86 SPEC CPU]

cd bld; \
 RUNTESTFLAGS="--target_board='unix{-mx32}'" ../src-trunk/configure \
	 --prefix=/export/gnu/import/git/gcc-test-spec/usr --enable-clocale=gnu --with-system-zlib --enable-shared --with-demangler-in-ld --with-multilib-list=m32,m64,mx32 --with-fpmath=sse --enable-languages=c,c++,fortran,lto
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.216501.trunk.x86_64 >> makelog.216501.trunk.x86_64.mail; \
make[5]: *** [cilk-abi-cilk-for.lo] Error 1
make[4]: *** [all-target-libcilkrts] Error 2
make[3]: *** [bootstrap] Error 2
make[2]: *** [bootstrap] Error 2
checking whether mmap from /dev/zero works... yes
checking for MAP_ANON(YMOUS)... yes
checking for uintptr_t... config.status: executing libtool commands
yes
checking whether mmap with MAP_ANON(YMOUS) works... yes
checking whether byte ordering is bigendian... config.status: executing gstdint.h commands
yes
checking for int_least32_t... config.status: executing depfiles commands
no
config.status: executing libtool commands
yes
checking for int_fast32_t... config.status: executing gstdint.h commands
checking for strtoull... yes
checking for uint64_t... yes
checking for memalign... yes
checking what to include in gstdint.h... stdint.h (already complete)
checking sys/mman.h usability... yes
checking for posix_memalign... yes
checking sys/mman.h presence... yes
checking for sys/mman.h... yes
checking alloca.h usability... yes
checking for getauxval... yes
checking alloca.h presence... yes
checking for alloca.h... yes
checking link.h usability... yes
yes
checking link.h presence... yes
checking for link.h... yes
checking whether strnlen is declared... checking whether the target supports thread-local storage... yes
configure: updating cache ./config.cache
configure: creating ./config.status
yes
checking whether the target supports hidden visibility... yes
checking whether the target supports dllexport... no
checking whether the target supports symbol aliases... yes
checking for ld used by /export/gnu/import/git/gcc-test-spec/bld/./gcc/xgcc -B/export/gnu/import/git/gcc-test-spec/bld/./gcc/ -B/export/gnu/import/git/gcc-test-spec/usr/x86_64-unknown-linux-gnu/bin/ -B/export/gnu/import/git/gcc-test-spec/usr/x86_64-unknown-linux-gnu/lib/ -isystem /export/gnu/import/git/gcc-test-spec/usr/x86_64-unknown-linux-gnu/include -isystem /export/gnu/import/git/gcc-test-spec/usr/x86_64-unknown-linux-gnu/sys-include  -mx32... (cached) /export/gnu/import/git/gcc-test-spec/bld/./gcc/collect-ld
checking if the linker (/export/gnu/import/git/gcc-test-spec/bld/./gcc/collect-ld) is GNU ld... (cached) yes
checking for -mclear-hwcap... no
checking whether __AVX__ is declared... no
checking for shared libgcc... config.status: creating Makefile
config.status: creating libsanitizer.spec
yes
configure: versioning on shared library symbols is gnu
checking assembler .cfi pseudo-op support... config.status: creating libbacktrace/backtrace-supported.h
config.status: creating interception/Makefile
yes
checking how size_t is mangled... j
checking whether the target supports __sync_*_compare_and_swap... Adding multilib support to interception/Makefile in ../../../../src-trunk/libsanitizer
with_multisubdir=x32
config.status: creating sanitizer_common/Makefile
yes
checking whether the target supports 64-bit __sync_*_compare_and_swap... Adding multilib support to sanitizer_common/Makefile in ../../../../src-trunk/libsanitizer
with_multisubdir=x32
config.status: creating libbacktrace/Makefile
yes
checking if the assembler supports AVX... yes
checking if the assembler supports RTM... yes
checking whether weak refs work like ELF... Adding multilib support to libbacktrace/Makefile in ../../../../src-trunk/libsanitizer
with_multisubdir=x32
config.status: creating lsan/Makefile
yes
configure: updating cache ./config.cache
Adding multilib support to lsan/Makefile in ../../../../src-trunk/libsanitizer
with_multisubdir=x32
config.status: creating asan/Makefile
configure: creating ./config.status
Adding multilib support to asan/Makefile in ../../../../src-trunk/libsanitizer
with_multisubdir=x32
config.status: creating ubsan/Makefile
Adding multilib support to ubsan/Makefile in ../../../../src-trunk/libsanitizer
with_multisubdir=x32
config.status: creating config.h
config.status: executing depfiles commands
config.status: executing default-1 commands
Adding multilib support to Makefile in ../../../../src-trunk/libsanitizer
with_multisubdir=x32
config.status: executing libtool commands
config.status: executing gstdint.h commands
config.status: creating Makefile
config.status: executing libtool commands
config.status: creating testsuite/Makefile
config.status: executing gstdint.h commands
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=x32
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-spec/bld'
make[3]: *** [bootstrap] Error 2
make[3]: Leaving directory `/export/gnu/import/git/gcc-test-spec/bld'
14321.05user 385.55system 46:58.17elapsed 521%CPU (0avgtext+0avgdata 773004maxresident)k
220752inputs+12945296outputs (9306major+125441364minor)pagefaults 0swaps
make[2]: *** [bootstrap] Error 2
make[2]: Leaving directory `/export/gnu/import/git/gcc-test-spec'