Hello, the answer depends on whether you're trying to compile for AIX 4 or 5. You can't build one for AIX 5, you may be able to for AIX 4. Regardless, you'll need AIX headers and libraries (so access to an AIX system to copy these from) and the process is far from well-tested. You will most definitely need a cross assembler and linker, which you can get from GNU binutils. Dara __________________________________ Do you Yahoo!? Free Pop-Up Blocker - Get it now http://companion.yahoo.com/