This entire process is new to me, but I am happy to report success with the following: /config.guess Powerpc-ibm-aix4.3.1.0 /gcc -v Reading specs from /usr/local/lib/gcc-lib/powerpc-ibm-aix4.3.1.0/3.0.4/specs Configured with: ../gcc-3.0.4/configure Thread model: single gcc version 3.0.4 Don Allen allen@norpac.com Norpac Foods, Inc. Salem, Oregon (503) 393-4221