- ia64 build fixes from Doug Chapman (BZ 428882).
    - gdbserver separated into an extra package (BZ 405791).
    - pstack obsoleted by included gstack (BZ 197020).
    - Fix #include <asm/ptrace.h> on
        kernel-headers-2.6.25-0.40.rc1.git2.fc9.x86_64.
    - Drop the PowerPC simulator as no longer being compatible with Fedora
        binaries.