anchor.diff:  
     #platforms = import ./platforms.nix;
   
  -  setJavaClassPath = makeSetupHook { } ../build-support/setup-hooks/set-java-classpath.sh;
  -
  -  keepBuildTree = makeSetupHook { } ../build-support/setup-hooks/keep-build-tree.sh;
  -
  -  enableGCOVInstrumentation = makeSetupHook { } ../build-support/setup-hooks/enable-coverage-instrumentation.sh;
  +  setJavaClassPath =
  +    makeSetupHook { } ../build-support/setup-hooks/set-java-classpath.sh;
  +
  +  keepBuildTree =
  +    makeSetupHook { } ../build-support/setup-hooks/keep-build-tree.sh;
  +
  +  enableGCOVInstrumentation =
  +    makeSetupHook { }
  +      ../build-support/setup-hooks/enable-coverage-instrumentation.sh;
   
     makeGCOVReport = makeSetupHook
       { deps = [ pkgs.lcov pkgs.enableGCOVInstrumentation ]; }
       ../build-support/setup-hooks/make-coverage-analysis-report.sh;
   
  -  # intended to be used like nix-build -E 'with <nixpkgs> {}; enableDebugging fooPackage'
  -  enableDebugging = pkg: pkg.override { stdenv = stdenvAdapters.keepDebugInfo pkgs.stdenv; };
  -
  -  findXMLCatalogs = makeSetupHook { } ../build-support/setup-hooks/find-xml-catalogs.sh;
  +  # intended to be used like:
  +  # nix-build -E 'with <nixpkgs> {}; enableDebugging fooPackage'
  +  enableDebugging = pkg: pkg.override {
  +    stdenv = stdenvAdapters.keepDebugInfo pkgs.stdenv;
  +  };
  +
  +  findXMLCatalogs =
  +    makeSetupHook { } ../build-support/setup-hooks/find-xml-catalogs.sh;
   
     wrapGAppsHook = makeSetupHook {
       deps = [ makeWrapper ];
     } ../build-support/setup-hooks/wrap-gapps-hook.sh;
   
  -  separateDebugInfo = makeSetupHook { } ../build-support/setup-hooks/separate-debug-info.sh;
  +  separateDebugInfo =
  +    makeSetupHook { } ../build-support/setup-hooks/separate-debug-info.sh;
   
   ################################################################################
   ################################################################################
  
positive.code:           { };
  
    # Helper functions that are exported through `pkgs'.
    helperFunctions =
      stdenvAdapters //
      (import ../build-support/trivial-builders.nix { inherit lib; inherit (pkgs) stdenv; inherit (pkgs.xorg) lndir; });
  
    stdenvAdapters =
      import ../stdenv/adapters.nix pkgs;
  
  
    # Allow packages to be overriden globally via the `packageOverrides'
  
negative.code: 
    ### Nixpkgs maintainer tools
  
    nix-generate-from-cpan =
      callPackage ../../maintainers/scripts/nix-generate-from-cpan.nix { };
  
    nixpkgs-lint = callPackage ../../maintainers/scripts/nixpkgs-lint.nix { };
  
  