anchor.diff:  , libvpx
   , ortp
   , pkg-config
  -, python
  +, python3
   , SDL
   , speex
   , srtp
  
positive.code:     group = "BC";
      repo = pname;
      rev = version;
      sha256 = "18qmg678m087k7qsaxwfcv2p875z2kpy91pqryiv955km40drl0g";
    };
  
    patches = [
  
negative.code:     doxygen
      intltool
      pkg-config
      python3
    ];
  
    propagatedBuildInputs = [
  