The default CFLAGS set by RPM include “-mtune-atom”. Why? I doubt Atom CPUs are Fedora's primary target. It's not even a documented GCC option. There is such a wide variety of CPUs under this label that it's not even clear what it would mean. If it's better than “-mtune=generic” or the GCC default, shouldn't GCC be fixed? -- Florian Weimer / Red Hat Product Security