Hi, Currently the system_info stuff on x86_64 is the same as on x86, so this results in BePC being returned as the machine type in uname on x86_64. Perhaps this should be different so that it's possible to differentiate between x86 and x86_64? Should I add a new platform type definition (B_64BIT_PC_PLATFORM or something), and return "x86_64" as the machine type in uname for that platform? Thanks, Alex