anchor.diff:          sha256 = "0jnhjhm1ilpcwb4f58b8pgyzjq3dlr0j2xyk0zck0afwkdxyj9cb";
         };
   
  +      # Won't be needed when 0.21.24 will be out
  +      patches = [
  +        # Tests fail otherwise, see https://github.com/MusicPlayerDaemon/MPD/issues/844
  +        (fetchpatch {
  +          url = "https://github.com/MusicPlayerDaemon/MPD/commit/7aea2853612743e111ae5e947c8d467049e291a8.patch";
  +          sha256 = "1bmxlsaiz3wlg1yyc4rkwsmgvc0pirv0s1vdxxsn91yssmh16c2g";
  +          excludes = [
  +            # The patch fails otherwise because it tries to update the NEWS
  +            # file which doesn't have the title "ver 0.21.24" yet.
  +            "NEWS"
  +          ];
  +        })
  +      ];
  +
         buildInputs = [
           glib
           boost
  +        # According to the configurePhase of meson, gtest is considered a
  +        # runtime dependency. Quoting:
  +        #
  +        #    Run-time dependency GTest found: YES 1.10.0
  +        gtest
         ]
           ++ (lib.concatLists (lib.attrVals features_ featureDependencies))
           ++ lib.optionals stdenv.isDarwin [ darwin.apple_sdk.frameworks.AudioToolbox darwin.apple_sdk.frameworks.AudioUnit ];
  
positive.code:         pkg-config
        ];
  
        enableParallelBuilding = true;
  
        mesonAutoFeatures = "disabled";
        mesonFlags =
          map (x: "-D${x}=enabled") features_
          ++ map (x: "-D${x}=disabled") (lib.subtractLists features_ knownFeatures)
          ++ lib.optional (builtins.elem "zeroconf" features_)
            "-Dzeroconf=avahi"
  
negative.code: # Tag support
  , libid3tag
  , nixosTests
  # For tests
  , gtest
  , fetchpatch # used to fetch an upstream patch fixing a failing test
  , zip
  }:
  
  let
  