Index: retroarch.cfg
--- retroarch.cfg.orig
+++ retroarch.cfg
@@ -832,7 +832,7 @@
 # rgui_browser_directory =
 
 # Core directory for libretro core implementations.
-# libretro_directory =
+libretro_directory = "${PREFIX}/lib/libretro"
 
 # Core info directory for libretro core information.
 # libretro_info_path =