anchor.diff:  { stdenv
   , fetchurl
   , gettext
  -, intltool
   , lib
   , meson
   , ninja
   
  -, file
   , glib
  -, gmime
   , gobject-introspection
   , libarchive
   , libgcrypt
  -, libsoup
   , libxml2
   
   , channel
  
positive.code: let
    sources = {
      "3.26" = {
        version = "3.26.0";
        sha256 = "f153a53391e9b42fed5cb6ce62322a58e323fde6ec4a54d8ba4d376cf4c1fbcb";
      };
    };
  
  
negative.code:   ];
  
    buildInputs = [
      glib
      gobject-introspection
      libarchive
      libgcrypt
      libxml2
    ];
  
    mesonFlags = [
      "-Denable-quvi=no"  # FIXME
      "-Denable-libarchive=yes"
      "-Denable-libgcrypt=yes"
    ];
  
    passthru = {
  