a problem about cross-compile for powerpc

[邹琼]

1.firstly,i compile the binutils-2.15, it successed.
../configure -target=rs6000-ibm-aix4.3 -prefix=/opt/crosstools/
make
make install
2.secondly, i compile the gcc
../configure -target=rs6000-ibm-aix4.3 -prefix=/opt/crosstools/
-enable-languages=c
make

then it failed as follows:
../../../source/gcc-4.0-20050109/gcc/config/rs6000/darwin.md:243: unknown
mode `V4SI'

i try to delete the lines that make errors, but when it start to compile
the gcc, it will error again.

thank you.