Gcc [trunk revision 204555] failed to bootstrap on x86_64!

[H.J. Lu x32]

cd bld; \
 RUNTESTFLAGS="--target_board='unix{-mx32}'" ../src-trunk/configure \
	 --prefix=/usr/local --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,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.204555.trunk.x86_64.x32 >> makelog.204555.trunk.x86_64.x32.mail; \
make[8]: *** [x86_64-unknown-linux-gnu/bits/extc++.h.gch/O2g.gch] Error 1
make[7]: *** [all-recursive] Error 1
make[6]: *** [all] Error 2
make[5]: *** [all-stage1-target-libstdc++-v3] Error 2
make[4]: *** [stage1-bubble] Error 2
make[3]: *** [bootstrap] Error 2
make[2]: *** [bootstrap] Error 2
with_multisubdir=x32
config.status: creating config.h
config.status: executing default-1 commands
Adding multilib support to Makefile in ../../../../src-trunk/libstdc++-v3
with_multisubdir=x32
config.status: executing libtool commands
config.status: executing include/gstdint.h commands
config.status: executing generate-headers commands
make[6]: Entering directory `/export/gnu/import/git/gcc-test-x32/bld/x86_64-unknown-linux-gnu/x32/libstdc++-v3/include'
echo timestamp > stamp-pb
echo timestamp > stamp-host
echo 0 > stamp-namespace-version
echo 1 > stamp-visibility
echo 1 > stamp-extern-template
sed -e '/^#pragma/b' \
    -e '/^#/s/\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_][ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*\)/_GLIBCXX_\1/g' \
    -e 's/_GLIBCXX_SUPPORTS_WEAK/__GXX_WEAK__/g' \
    -e 's/_GLIBCXX___MINGW32_GLIBCXX___/__MINGW32__/g' \
    -e 's,^#include "\(.*\)",#include <bits/\1>,g' \
    < /export/gnu/import/git/gcc-test-x32/src-trunk/libstdc++-v3/../libgcc/gthr.h > x86_64-unknown-linux-gnu/bits/gthr.h
sed -e 's/\(UNUSED\)/_GLIBCXX_\1/g' \
    -e 's/\(GCC[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*_H\)/_GLIBCXX_\1/g' \
    < /export/gnu/import/git/gcc-test-x32/src-trunk/libstdc++-v3/../libgcc/gthr-single.h > x86_64-unknown-linux-gnu/bits/gthr-single.h
sed -e 's/\(UNUSED\)/_GLIBCXX_\1/g' \
    -e 's/\(GCC[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*_H\)/_GLIBCXX_\1/g' \
    -e 's/SUPPORTS_WEAK/__GXX_WEAK__/g' \
    -e 's/\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*USE_WEAK\)/_GLIBCXX_\1/g' \
    < /export/gnu/import/git/gcc-test-x32/src-trunk/libstdc++-v3/../libgcc/gthr-posix.h > x86_64-unknown-linux-gnu/bits/gthr-posix.h
sed -e 's/\(UNUSED\)/_GLIBCXX_\1/g' \
    -e 's/\(GCC[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*_H\)/_GLIBCXX_\1/g' \
    -e 's/SUPPORTS_WEAK/__GXX_WEAK__/g' \
    -e 's/\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*USE_WEAK\)/_GLIBCXX_\1/g' \
    -e 's,^#include "\(.*\)",#include <bits/\1>,g' \
    < /export/gnu/import/git/gcc-test-x32/src-trunk/libstdc++-v3/../libgcc/gthr-posix.h > x86_64-unknown-linux-gnu/bits/gthr-default.h
make[6]: Leaving directory `/export/gnu/import/git/gcc-test-x32/bld/x86_64-unknown-linux-gnu/x32/libstdc++-v3/include'
config.status: executing libtool commands
config.status: executing include/gstdint.h commands
config.status: executing generate-headers commands
make[6]: Entering directory `/export/gnu/import/git/gcc-test-x32/bld/x86_64-unknown-linux-gnu/libstdc++-v3/include'
echo timestamp > stamp-pb
echo timestamp > stamp-host
echo 0 > stamp-namespace-version
echo 1 > stamp-visibility
echo 1 > stamp-extern-template
sed -e '/^#pragma/b' \
    -e '/^#/s/\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_][ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*\)/_GLIBCXX_\1/g' \
    -e 's/_GLIBCXX_SUPPORTS_WEAK/__GXX_WEAK__/g' \
    -e 's/_GLIBCXX___MINGW32_GLIBCXX___/__MINGW32__/g' \
    -e 's,^#include "\(.*\)",#include <bits/\1>,g' \
    < /export/gnu/import/git/gcc-test-x32/src-trunk/libstdc++-v3/../libgcc/gthr.h > x86_64-unknown-linux-gnu/bits/gthr.h
sed -e 's/\(UNUSED\)/_GLIBCXX_\1/g' \
    -e 's/\(GCC[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*_H\)/_GLIBCXX_\1/g' \
    < /export/gnu/import/git/gcc-test-x32/src-trunk/libstdc++-v3/../libgcc/gthr-single.h > x86_64-unknown-linux-gnu/bits/gthr-single.h
sed -e 's/\(UNUSED\)/_GLIBCXX_\1/g' \
    -e