[retro-gtk] meson: Add gio_unix to retro-gtk/meson.build

[Adrien Plazas <aplazas src gnome org>]

commit f71c48ab4342b0d29a216a83887cc386b64b6bb6
Author: Damien Cassou <damien cassou me>
Date:   Sun May 23 17:44:18 2021 +0200

    meson: Add gio_unix to retro-gtk/meson.build

 retro-gtk/meson.build | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/retro-gtk/meson.build b/retro-gtk/meson.build
index aa3f311..ad59ab3 100644
--- a/retro-gtk/meson.build
+++ b/retro-gtk/meson.build
@@ -103,6 +103,7 @@ retro_gtk_c_args = [
 retro_gtk_deps = [
   epoxy,
   gio,
+  gio_unix,
   glib,
   gmodule,
   gobject,