anchor.diff:  , attr
   , libelf
   , libffi
  +, libselinux
   , pcre
   , util-linux_lib
   , zlib
  
positive.code:   inherit (stdenv.lib)
      boolEn
      optionals
      optionalString
      versionAtLeast;
  
    # Some packages don't get "Cflags" from pkgconfig correctly
    # and then fail to build when directly including like <glib/...>.
  
negative.code:   ];
  
    postInstall = "rm -rvf $out/share/gtk-doc";
  
    passthru = {
      gioModuleDir = "lib/gio-modules/${name}/gio/modules";
  