anchor.diff:  
     extraIncludeDirs =
       if cross != null then
  -        (if cross.arch == "powerpc" then ["ppc"] else [])
  +	(if cross.arch == "powerpc" then ["ppc"] else [])
       else if stdenv.system == "powerpc-linux" then ["ppc"] else [];
   
     patchPhase = ''
  -    patch -p1 "${./unifdef-getline.patch}"
  +    patch --verbose -p1 "${./unifdef-getline.patch}"
       sed -i '/scsi/d' include/Kbuild
     '';
   
  
positive.code:     ln -s asm $out/include/asm-$platform
      if test "$platform" = "i386" -o "$platform" = "x86_64"; then
        ln -s asm $out/include/asm-x86
      fi  
    '';
  }
  
negative.code: 
    targetConfig = if (cross != null) then cross.config else null;
  
    platform =
      if cross != null then cross.arch else
      if stdenv.system == "i686-linux" then "i386" else
      if stdenv.system == "x86_64-linux" then "x86_64" else
  