anchor.diff:            inherit lib shell;
             inherit (last) stdenvNoCC;
   
  -          nativeTools  = false;
  -          nativeLibc   = false;
  +          nativeTools = false;
  +          nativeLibc = false;
             inherit buildPackages libcxx;
             inherit (last.pkgs) coreutils gnugrep;
  -          bintools     = last.pkgs.darwin.binutils;
  -          libc         = last.pkgs.darwin.Libsystem;
  -          isClang      = true;
  -          cc           = last.pkgs."${finalLlvmPackages}".clang-unwrapped;
  -        }; in args // (overrides args));
  -
  -      cc = if last == null then "/dev/null" else mkCC ({ cc, ... }: {
  +          bintools = last.pkgs.darwin.binutils;
  +          libc = last.pkgs.darwin.Libsystem;
  +          isClang = true;
  +          cc = last.pkgs."${finalLlvmPackages}".clang-unwrapped;
  +        }; in args // (overrides args)
  +      );
  +
  +      cc = if last == null then "/dev/null" else
  +      mkCC ({ cc, ... }: {
           extraPackages = [
             last.pkgs."${finalLlvmPackages}".libcxxabi
             last.pkgs."${finalLlvmPackages}".compiler-rt
  
positive.code:     outputHashMode = "recursive";
    });
  
    stageFun = step: last: {shell             ? "${bootstrapTools}/bin/bash",
                            overrides         ? (self: super: {}),
                            extraPreHook      ? "",
                            extraNativeBuildInputs,
                            extraBuildInputs,
                            libcxx,
                            allowedRequisites ? null}:
      let
        name = "bootstrap-stage${toString step}";
  
  
negative.code:           inherit lib;
            inherit (self) stdenvNoCC;
  
            nativeTools = false;
            nativeLibc = false;
            inherit (self) buildPackages coreutils gnugrep;
            libc = selfDarwin.Libsystem;
            bintools = selfDarwin.binutils-unwrapped;
            inherit (selfDarwin) postLinkSignHook signingUtils;
          };
        } // lib.optionalAttrs (! useAppleSDKLibs) {
  