I have an amd64 box with rh fc2 installed. The system compiler is 3.3.3. I have a project that comes with a required 2.96 compiler image. The build properly finds that older compiler but that compiler invokes the system assembler which seems to believe it should be seeing 64-bit register names, not 32-bit. Can anyone suggest a work around? /john -- John S. Yates, Jr. 508 665-6897 (voice) Netezza Inc 508 665-6811 (fax) 200 Crossing Blvd. Framingham, MA 01701