anchor.diff: -{ fetchFromGitHub, libcommuni, qtbase, qmake, lib, stdenv, wrapQtAppsHook }:
  +{ stdenv
  +, lib
  +, fetchFromGitHub
  +, libcommuni
  +, qmake
  +, qtbase
  +, wrapQtAppsHook
  +}:
   
   stdenv.mkDerivation rec {
     pname = "communi";
  
positive.code:     "COMMUNI_INSTALL_ICONS=${placeholder "out"}/share/icons/hicolor"
      "COMMUNI_INSTALL_DESKTOP=${placeholder "out"}/share/applications"
      "COMMUNI_INSTALL_THEMES=${placeholder "out"}/share/communi/themes"
      (if stdenv.isDarwin
        then [ "COMMUNI_INSTALL_BINS=${placeholder "out"}/Applications" ]
        else [ "COMMUNI_INSTALL_BINS=${placeholder "out"}/bin" ])
    ];
  
    postInstall = if stdenv.isDarwin then ''
      # Nix qmake does not add the bundle rpath by default.
      install_name_tool \
        -add_rpath @executable_path/../Frameworks \
        $out/Applications/Communi.app/Contents/MacOS/Communi
    '' else ''
      substituteInPlace "$out/share/applications/communi.desktop" \
        --replace "/usr/bin" "$out/bin"
    '';
  
    preFixup = ''
      rm -rf lib
  
negative.code:     fetchSubmodules = true;
    };
  
    nativeBuildInputs = [
      qmake
      wrapQtAppsHook
    ];
  
    buildInputs = [
      libcommuni
      qtbase
    ];
  
    preConfigure = ''
      export QMAKEFEATURES=${libcommuni}/features
  