anchor.diff:        test/symbols-leak-test \
         test/check-leftover-udev-rules.sh \
         test/helper-copy-and-exec-from-tmp.sh
  +
  +    # Don't create an empty /etc directory.
  +    sed -i "/install_subdir('libinput', install_dir : dir_etc)/d" meson.build
     '';
   
     doCheck = testsSupport && stdenv.hostPlatform == stdenv.buildPlatform;
  
positive.code: 
  stdenv.mkDerivation rec {
    pname = "libinput";
    version = "1.16.4";
  
    src = fetchFromGitLab {
      domain = "gitlab.freedesktop.org";
      owner = pname;
      repo = pname;
      rev = version;
      sha256 = "1c81429kh9av9fanxmnjw5rvsjbzcyi7d0dx0gkyq5yysmpmrppi";
    };
  
    outputs = [ "bin" "out" "dev" ];
  
negative.code: { lib, stdenv, fetchurl, pkg-config, meson, ninja
  , libevdev, mtdev, udev, libwacom
  , documentationSupport ? false, doxygen, graphviz # Documentation
  , eventGUISupport ? false, cairo, glib, gtk3 # GUI event viewer support
  