anchor.diff:      folks
       gom
       gsound
  +    gst_all_1.gstreamer
  +    gst_all_1.gst-plugins-base
  +    gst_all_1.gst-plugins-good
  +    gst_all_1.gst-plugins-bad
  +    gst_all_1.gst-plugins-ugly
       feedbackd
       callaudiod
       gtk3
       libpeas
       libgdata # required by some dependency transitively
  +    sofia_sip
     ];
   
     checkInputs = [
  
positive.code:     "-Dgtk_doc=true"
    ];
  
    doCheck = true;
  
    checkPhase = ''
      runHook preCheck
  
negative.code: , docbook-xsl-nons
  , docbook_xml_dtd_43
  , gobject-introspection
  , gst_all_1
  , sofia_sip
  }:
  
  stdenv.mkDerivation rec {
    pname = "calls";
    version = "41.1";
  
    src = fetchFromGitLab {
      domain = "gitlab.gnome.org";
      owner = "GNOME";
      repo = pname;
      rev = version;
      sha256 = "1vbw9x5s3ww11f3lnqivc74rjlmi9fk1hzaq1idrdcck3gvif0h8";
    };
  
    outputs = [ "out" "devdoc" ];
  