anchor.diff: -{ stdenv, fetchFromGitHub, pkgconfig, symlinkJoin, qmake, diffPlugins
  +{ lib, mkDerivation, fetchFromGitHub, pkgconfig, symlinkJoin, qmake, diffPlugins
   , qtbase, qtmultimedia, taglib, libmediainfo, libzen, libbass }:
   
   let
  
positive.code:     sed -e "s|QCore.*applicationDirPath()|QString(\"${path}\")|" -i "${file}"
    '';
  
    buildPlugin = name: stdenv.mkDerivation {
      name = "ultrastar-manager-${name}-plugin-${version}";
      src = patchedSrc;
  
  
negative.code:       repo = "UltraStar-Manager";
        inherit rev sha256;
      };
      in mkDerivation {
        name = "${src.name}-patched";
        inherit src;
        phases = [ "unpackPhase" "patchPhase" ];
  
        patchPhase = with lib; ''
          # we don’t want prebuild binaries checked into version control!
          rm -rf lib include
  
  