gcc 로 cross-compile 시 에러입니다.

host : IA32, Redhat AS 30
Target : p620, aix5L
build : IA32, Redhat AS 30
gcc : version 3.2.3

gcc cross-compile 환경 만들때 안되는 현상인데 아무리봐도
모르겠기에, 고수분들 도움 구합니다.

./configure --target=powerpc-aix --prefix=/root/cross_compiler/ppc
--with-headers=/home/docho/SOURCE/linux/linux-2.4.21/include --disable-shared --disable-threads --e
nable-languages=c --with-ar=/home/cross_compiler/ppc/bin/powerpc-aix-ar --with-ld=/home/cross_compil
er/ppc/bin/powperpc-aix-ld --with-as=/home/cross_compiler/ppc/bin/powperpc-aix-as

문제 : Target 을 인식하지 못하는 것 같습니다.
Configuring for a i686-pc-linux-gnu host.
*** This configuration is not supported in the following subdirectories:
target-libffi target-boehm-gc target-zlib target-libjava target-libstdc++-v3 target-libf2c zlib
fastjar target-libobjc
(Any other directories should still work fine.)
=> host configure 는 잘되었습니다.
.........................................
checking if mkdir takes one argument... no
Configuration powerpc-ibm-aix not supported
Configure in /home/docho/SOURCE/gcc/gcc-3.2.3-20030829/gcc failed, exiting.

위 메세지 나오면서 configure 종됴 되면 어떻게 해주어야 하는지요?