problem building gcc 3.0 for aix

[Paul DeMello]

I first built and installed gcc 3.0 (without g++), and that is now my gcc.
Now, after getting the g++ package, I'm trying to build and install
everything again (including the g++), and I'm getting this during a
configure that occurs after I type make.  What I ran was:

./configure
make

What I got was:

checking for thread model used by GCC...
./configure[3641]: test: argument expected
checking for exception model to use... configure: error: unable to detect
exception model
make: *** [configure-target-libstdc++-v3] Error 1

Here's my gcc -v:

Reading specs from /usr/local/lib/gcc-lib/powerpc-ibm-aix4.3.3.0/3.0/specs
Configured with: ./configure
Thread model: single
gcc version 3.0

Any help would be much appreciated...
Thanks,
Paul