nemo-preview: init at 6.4.0, xreader: enable introspection (#391701)

pkgs/by-name/ne/nemo-preview/package.nix

@@ -0,0 +1,63 @@
+{
+  stdenv,
+  lib,
+  fetchFromGitHub,
+  meson,
+  pkg-config,
+  ninja,
+  glib,
+  gtk3,
+  cjs,
+  gtksourceview4,
+  gobject-introspection,
+  libmusicbrainz5,
+  webkitgtk_4_1,
+  clutter-gtk,
+  clutter-gst,
+  wrapGAppsHook3,
+  nemo,
+  xreader,
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "nemo-preview";
+  version = "6.4.0";
+
+  src = fetchFromGitHub {
+    owner = "linuxmint";
+    repo = "nemo-extensions";
+    tag = finalAttrs.version;
+    hash = "sha256-39hWA4SNuEeaPA6D5mWMHjJDs4hYK7/ZdPkTyskvm5Y=";
+  };
+
+  sourceRoot = "${finalAttrs.src.name}/nemo-preview";
+
+  nativeBuildInputs = [
+    wrapGAppsHook3
+    gobject-introspection
+    meson
+    pkg-config
+    glib
+    ninja
+  ];
+
+  buildInputs = [
+    gtk3
+    cjs
+    gtksourceview4
+    libmusicbrainz5
+    webkitgtk_4_1
+    clutter-gtk
+    clutter-gst
+    nemo
+    xreader
+  ];
+
+  meta = {
+    homepage = "https://github.com/linuxmint/nemo-extensions/tree/master/nemo-preview";
+    description = "Quick previewer for Nemo, the Cinnamon desktop file manager";
+    license = lib.licenses.gpl2Plus;
+    platforms = lib.platforms.linux;
+    maintainers = lib.teams.cinnamon.members;
+  };
+})

pkgs/by-name/xr/xreader/package.nix

@@ -57,6 +57,7 @@ stdenv.mkDerivation rec {
 
   mesonFlags = [
     "-Dmathjax-directory=${nodePackages.mathjax}"
+    "-Dintrospection=true"
   ] ++ (map (x: "-D${x}=true") backends);
 
   buildInputs = [