yosys: 0.28 -> 0.29

in stdenv.mkDerivation rec {

  pname   = "yosys";

  version = "0.28";

  version = "0.29";

  src = fetchFromGitHub {

    owner = "YosysHQ";

    repo  = "yosys";

    rev   = "${pname}-${version}";

    hash  = "sha256-z550IAyo4Rbq9/S2Vwgec3sy7KH2n95PH0k8vo/pBSE=";

    hash  = "sha256-qsuKXYuKsMAALIy1SjxhEhZIMO8B4MF2vmVbwqgzLyM=";

  };

  enableParallelBuilding = true;