gnome.nautilus: install docs

pkgs/desktops/gnome/core/nautilus/default.nix

@@ -4,6 +4,8 @@
 , meson
 , ninja
 , pkg-config
+, gtk-doc
+, docbook-xsl-nons
 , gettext
 , libxml2
 , desktop-file-utils
@@ -37,7 +39,7 @@ stdenv.mkDerivation rec {
   pname = "nautilus";
   version = "43.beta.1";
 
-  outputs = [ "out" "dev" ];
+  outputs = [ "out" "dev" "devdoc" ];
 
   src = fetchurl {
     url = "mirror://gnome/sources/${pname}/${lib.versions.major version}/${pname}-${version}.tar.xz";
@@ -63,6 +65,8 @@ stdenv.mkDerivation rec {
     meson
     ninja
     pkg-config
+    gtk-doc
+    docbook-xsl-nons
     wrapGAppsHook4
   ];
 
@@ -93,6 +97,10 @@ stdenv.mkDerivation rec {
     gtk4
   ];
 
+  mesonFlags = [
+    "-Ddocs=true"
+  ];
+
   preFixup = ''
     gappsWrapperArgs+=(
       # Thumbnailers