Bootstrap failure on i686-pc-linux-gnu configuring libstdc++

[Benjamin Kosnik]

... exact same as HPUX.

http://gcc.gnu.org/ml/gcc-bugs/2001-12/msg01081.html

struct S { ~S(); };
void bar();
void foo()
{
  S s;
  bar();
}


configure:3888: checking for exception model to use
configure:3914: /mnt/hd/ahimsa/bld-x86-gcc-clocale=generic/gcc/xgcc -B/mnt/hd/ahimsa/bld-x86-gcc-clocale=generic/gcc/ -nostdinc++  -L/mnt/hd/ahimsa/bld-x86-gcc-clocale=generic/i686-pc-linux-gnu/libstdc++-v3/src -L/mnt/hd/ahimsa/bld-x86-gcc-clocale=generic/i686-pc-linux-gnu/libstdc++-v3/src/.libs -B/mnt/hd/ahimsa/H-x86-gcc-gnulocale/i686-pc-linux-gnu/bin/ -B/mnt/hd/ahimsa/H-x86-gcc-gnulocale/i686-pc-linux-gnu/lib/ -isystem /mnt/hd/ahimsa/H-x86-gcc-gnulocale/i686-pc-linux-gnu/include -c -S  conftest.C 1>&5
configure:3903: `S::S()' has already been declared in `S'
configure:3903: `S::S(const S&)' has already been declared in `S'
configure:3903: `S::~S()' has already been declared in `S'
configure:3903: `S::~S()' has already been declared in `S'
configure:3903: confused by earlier errors, bailing out