- Cleanup spec file to add sparc|sparcv9|sparc64.
    - Add sparc specific workarounds to toolchain badness:
      - disable mmap in bdf/ via --without-mmap configure option.
      - add patch to not build mmap support on sparc for gdb/.
      - gdb code is NOT at fault, but we need a working gdb while we sort out
        the toolchain and rebuild all packages. this workaround is NOT for upstream
    
    Signed-off-by: Fabio M. Di Nitto <fdinitto@redhat.com>