x86-linux bootstrap failure (Tree check stdexcept.cc:34)

[Benjamin Kosnik]

x86-linux bootstrap failure:

/mnt/hd/bld/bld-x86-gcc/gcc/xgcc -B/mnt/hd/bld/bld-x86-gcc/gcc/ -nostdinc++ -L/mnt/hd/bld/bld-x86-gcc/i686-pc-linux-gnu/libstdc++-v3/src -L/mnt/hd/bld/bld-x86-gcc/i686-pc-linux-gnu/libstdc++-v3/src/.libs -B/mnt/hd/bld/H-x86-gcc/i686-pc-linux-gnu/bin/ -B/mnt/hd/bld/H-x86-gcc/i686-pc-linux-gnu/lib/ -isystem /mnt/hd/bld/H-x86-gcc/i686-pc-linux-gnu/include -nostdinc++ -I/mnt/hd/src/src.gcc/libstdc++-v3/include -I/mnt/hd/src/src.gcc/libstdc++-v3/include/std -I/mnt/hd/src/src.gcc/libstdc++-v3/include/c_std -I../include -I/mnt/hd/src/src.gcc/libstdc++-v3/libsupc++ -I../libio -I/mnt/hd/src/src.gcc/libstdc++-v3/libio -I/mnt/hd/src/src.gcc/libstdc++-v3/libmath -g -O2 -D_GNU_SOURCE -fno-implicit-templates -Wall -Wno-format -W -Wwrite-strings -Winline -fdiagnostics-show-location=once -ffunction-sections -fdata-sections -g -c /mnt/hd/src/src.gcc/libstdc++-v3/src/stdexcept.cc  -fPIC -DPIC -o .libs/stdexcept.o
In file included from /mnt/hd/src/src.gcc/libstdc++-v3/include/bits/std_string.h:50,
                 from /mnt/hd/src/src.gcc/libstdc++-v3/src/stdexcept.cc:34:
/mnt/hd/src/src.gcc/libstdc++-v3/include/bits/basic_string.tcc:532: Tree check:    expected function_decl, have template_decl in duplicate_decls, at cp/decl.c:
   3504
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL: http://www.gnu.org/software/gcc/bugs.html > for instructions.
make[3]: *** [stdexcept.lo] Error 1
make[3]: Leaving directory `/mnt/hd/bld/bld-x86-gcc/i686-pc-linux-gnu/libstdc++-v3/src'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/mnt/hd/bld/bld-x86-gcc/i686-pc-linux-gnu/libstdc++-v3