anchor.diff:    postPatch = optionalString (config == "mumble") ''
       export MUMBLE_PYTHON="${python2}/bin/python"
       patchShebangs ./scripts/rcc-depends.py
  +  '' + optionalString (config == "murmur" && ice != null) ''
  +    sed -i 's,/usr,${ice},g' src/murmur/murmur_ice/murmur_ice.pro
     '';
   
     configureFlags = [
  
positive.code:   sources = {
      "git" = {
        fetchzipversion = 3;
        version = "2017-08-23";
        rev = "f2cbebdce87ac68929effb18e2ced7bbc58f89f9";
        sha256 = "93c28e806e1a6b573612ed47f4790e98719bbe83a135446ea8a88a568e54b2b1";
      };
    };
    source = sources."${channel}";
  
negative.code: , boost
  , fixesproto
  , grpc
  , ice
  , inputproto
  , jack2_lib
  , libcap
  