anchor.diff:      ++ optional stdenv.hostPlatform.isMusl "-DUSE_IDN=false";
   
     nativeBuildInputs = [ meson ninja pkgconfig gettext libxslt.bin docbook_xsl_ns ];
  -  buildInputs = [ libcap systemd ]
  +  buildInputs = [ libcap ]
       ++ optional (!stdenv.hostPlatform.isMusl) libidn2;
   
     meta = {
  
positive.code:     sha256 = "1jhbcz75a4ij1myyyi110ma1d8d5hpm3scz9pyw7js6qym50xvh4";
    };
  
    mesonFlags = [
      "-DBUILD_RARPD=true"
      "-DBUILD_TRACEROUTE6=true"
  
negative.code: { stdenv, fetchFromGitHub
  , meson, ninja, pkgconfig, gettext, libxslt, docbook_xsl_ns
  , libcap, libidn2
  }:
  
  with stdenv.lib;
  