anchor.diff:  }:
   
   let
  -  major = "2.9";
  -  patch = "8";
  +  major = "2.10";
  +  patch = "0-RC1";
   
     version = "${major}.${patch}";
   in
  
positive.code:   preBuild = ''
      # Build depends on shared-mime-info
      export XDG_DATA_DIRS="$XDG_DATA_DIRS''${XDG_DATA_DIRS:+:}${shared-mime-info}/share"
    '';
  
    postInstall = ''
  
negative.code: 
    src = fetchurl rec {
      url = "https://download.gimp.org/pub/gimp/v${major}/${name}.tar.bz2";
      multihash = "QmfYkPnG63yRTFFUEnUP7gJTahiqqW2NhhfVSYEq4xoLxQ";
      hashOutput = false;
      sha256 = "cc87b8edc74451b25563fdd8ee29169bd6554283a7bc07cb6a142beee89d269e";
    };
  
    nativeBuildInputs = [
      gettext
      intltool
      libxml2
      makeWrapper
      python2Packages.wrapPython
    ];
  