anchor.diff:    ];
   in stdenv.mkDerivation rec {
     pname = "pulseeffects";
  -  version = "5.0.0";
  +
  +  # 5.0.3 crashes. Test carefully before updating.
  +  # https://github.com/wwmm/pulseeffects/issues/927
  +  version = "5.0.2";
   
     src = fetchFromGitHub {
       owner = "wwmm";
       repo = "pulseeffects";
       rev = "v${version}";
  -    sha256 = "1zs13bivxlgcb24lz1pgmgy2chcjxnmn4lz7g1n0ygiaaj4c30xj";
  +    sha256 = "14ir25q6bws26im6qmj3k6hkfdh5pc6mbvln7wkdwy5dv0vix3cm";
     };
   
     nativeBuildInputs = [
  
positive.code:     zita-convolver
    ];
  
    postPatch = ''
      chmod +x meson_post_install.py
      patchShebangs meson_post_install.py
  
negative.code:   BOOST_INCLUDEDIR = "${lib.getDev boost}/include";
    BOOST_LIBRARYDIR = "${lib.getLib boost}/lib";
  
    separateDebugInfo = true;
  
    meta = with lib; {
      description = "Limiter, compressor, reverberation, equalizer and auto volume effects for Pulseaudio applications";
      homepage = "https://github.com/wwmm/pulseeffects";
  