anchor.diff:  
         doSign = localSystem.isAarch64 && last != null;
         doUpdateAutoTools = localSystem.isAarch64 && last != null;
  +      inherit (last.pkgs) runCommandLocal;
   
         mkExtraBuildCommands = cc: ''
           rsrc="$out/resource-root"
  
positive.code:           '';
          };
  
          sigtool = stdenv.mkDerivation {
            name = "bootstrap-stage0-sigtool";
            phases = [ "installPhase" ];
            installPhase = ''
              mkdir -p $out/bin
              ln -s ${bootstrapTools}/bin/sigtool $out/bin
  
              # Rewrite nuked references
              sed -e "s|[^( ]*\bsigtool\b|$out/bin/sigtool|g" \
                ${bootstrapTools}/bin/codesign > $out/bin/codesign
              chmod a+x $out/bin/codesign
            '';
            # on next bootstrap tools update, use the following:
            # installPhase = ''
            #   mkdir -p $out/bin
            #   ln -s ${bootstrapTools}/bin/sigtool  $out/bin
            #   ln -s ${bootstrapTools}/bin/codesign $out/bin
            # '';
          };
  
          print-reexports = stdenv.mkDerivation {
            name = "bootstrap-stage0-print-reexports";
            phases = [ "installPhase" ];
            installPhase = ''
              mkdir -p $out/bin
              ln -s ${bootstrapTools}/bin/print-reexports $out/bin
            '';
          };
  
          rewrite-tbd = stdenv.mkDerivation {
            name = "bootstrap-stage0-rewrite-tbd";
            phases = [ "installPhase" ];
            installPhase = ''
              mkdir -p $out/bin
              ln -s ${bootstrapTools}/bin/rewrite-tbd $out/bin
            '';
          };
  
          binutils-unwrapped = { name = "bootstrap-stage0-binutils"; outPath = bootstrapTools; };
  
  
negative.code:         '';
        };
  
        pbzx = self.runCommandLocal "bootstrap-stage0-pbzx" { } ''
          mkdir -p $out/bin
          ln -s ${bootstrapTools}/bin/pbzx $out/bin
        '';
  
        cpio = self.runCommandLocal "bootstrap-stage0-cpio" { } ''
          mkdir -p $out/bin
          ln -s ${bootstrapFiles.cpio} $out/bin/cpio
        '';
  
        darwin = super.darwin.overrideScope (selfDarwin: superDarwin: {
          darwin-stubs = superDarwin.darwin-stubs.override { inherit (self) stdenvNoCC fetchurl; };
  