libqrtr-glib: fix cross

pkgs/development/libraries/libqrtr-glib/default.nix

@@ -2,6 +2,7 @@
 , stdenv
 , fetchFromGitLab
 , meson
+, mesonEmulatorHook
 , ninja
 , pkg-config
 , gobject-introspection
@@ -39,16 +40,15 @@ stdenv.mkDerivation rec {
     gtk-doc
     docbook-xsl-nons
     docbook_xml_dtd_43
+  ] ++ lib.optionals (!stdenv.buildPlatform.canExecute stdenv.hostPlatform) [
+    mesonEmulatorHook
   ];
 
   buildInputs = [
+    gobject-introspection
     glib
   ];
 
-  mesonFlags = lib.optionals (stdenv.buildPlatform != stdenv.hostPlatform) [
-    "-Dgtk_doc=false"
-  ];
-
   meta = with lib; {
     homepage = "https://gitlab.freedesktop.org/mobile-broadband/libqrtr-glib";
     description = "Qualcomm IPC Router protocol helper library";