anchor.diff:      inherit (darwin) cf-private;
       inherit (darwin.apple_sdk.frameworks) ApplicationServices Carbon Cocoa;
       inherit (darwin.apple_sdk.libs) Xplugin;
  -    bootstrap_cmds = if stdenv.isDarwin then darwin.bootstrap_cmds else null;
  +    inherit (buildPackages.darwin) bootstrap_cmds;
       udev = if stdenv.isLinux then udev else null;
       libdrm = if stdenv.isLinux then libdrm else null;
       abiCompat = config.xorg.abiCompat # `config` because we have no `xorg.override`
  
positive.code:   jhiccup = callPackage ../development/tools/java/jhiccup { };
  
    valgrind = callPackage ../development/tools/analysis/valgrind {
      inherit (darwin) xnu bootstrap_cmds cctools;
    };
    valgrind-light = res.valgrind.override { gdb = null; };
  
  
negative.code:   kinetic-cpp-client = callPackage ../development/libraries/kinetic-cpp-client { };
  
    krb5 = callPackage ../development/libraries/kerberos/krb5.nix {
      inherit (buildPackages.darwin) bootstrap_cmds;
    };
    krb5Full = krb5;
    libkrb5 = krb5.override {
  