gnu: retroarch-minimal: Add new search paths.

This makes it possible to locate system files provided by libretro cores, as
well as database and cheat files.

* gnu/packages/patches/retroarch-improved-search-paths.patch: Extend patch.
* gnu/packages/emulators.scm (retroarch-minimal) [native-search-paths]:
Register new search paths for the LIBRETRO_CHEATS_DIRECTORY,
LIBRETRO_DATABASE_DIRECTORY and LIBRETRO_SYSTEM_DIRECTORY variables.

Reviewed-by: Sou Bunnbu (宋文武) <iyzsong@member.fsf.org>
Change-Id: I48f9a92608c0e36922ce9dcc9bbb61d6ca915002

1 files changed, 12 insertions, 0 deletions

diff --git a/gnu/packages/emulators.scm b/gnu/packages/emulators.scm
index 49a1b12713b..46a7ee37077 100644
--- a/gnu/packages/emulators.scm
+++ b/gnu/packages/emulators.scm
@@ -2634,6 +2634,18 @@ GLSL (@file{.slang}) shaders for use with RetroArch.")
               (separator #f)            ;single entry
               (files '("share/libretro/autoconfig")))
              (search-path-specification
+              (variable "LIBRETRO_CHEATS_DIRECTORY")
+              (separator #f)            ;single entry
+              (files '("share/libretro/database/cht")))
+             (search-path-specification
+              (variable "LIBRETRO_DATABASE_DIRECTORY")
+              (separator #f)            ;single entry
+              (files '("share/libretro/database/rdb")))
+             (search-path-specification
+              (variable "LIBRETRO_SYSTEM_DIRECTORY")
+              (separator #f)            ;single entry
+              (files '("share/libretro/system")))
+             (search-path-specification
               (variable "LIBRETRO_VIDEO_FILTER_DIRECTORY")
               (separator #f)            ;single entry
               (files '("share/libretro/filters/video")))