Hi, A while ago H.J. Lu adviced to use -march/-mtune instead of -mcpu options. But I wonder which front-end you need to use? It looks like gcc-3.0.2 lists the option as a target-specific one but does not accept it when you pass it. I then decided to track down the port H.J. made and found it on the ftp server but only in rpm form. I run a debian host for development. I assume/hope the binaries will probably run on my host if only I could get to their content. I know about alien but the version of rpm (3.0.3) on my host does not accept the rpm packages from the ftp site: only packages with major numbers <= 3 are supported by this version of RPM And a newer version of rpm is available but in rpm form. A bit of a problem. Why this bias towards Red Hat? Why not just tar files? Also, I notice the compiler in H.J.'s port is something like gcc-2.96.something. Assuming this is also the version of the cross-compiler, how come I don't see this release on the official gcc web page? How do his tools relate to the gcc releases? I may be missing some historical background here, Kristof