So, I think the problem here is that your RPM is telling OpenAFS to build for the 'ppc_linux26' architecture, whereas you should actually building for the "ppc64_linux26" architecture. From the output, I don't think you're using the OpenAFS RPM specfile, so you're probably best asking whoever produced your RPMs how they're generating the sysname that they pass to configure. Cheers, Simon.