gnu: retroarch: Update to 1.9.0.

* gnu/packages/emulators.scm (retroarch): Update to 1.9.0.
[source]: Remove 'retroarch-disable-online-updater.patch' and snippet.
Add 'retroarch-LIBRETRO_DIRECTORY.patch'.
[native-search-paths]: New field.
* gnu/packages/patches/retroarch-disable-online-updater.patch: Remove file.
* gnu/packages/patches/retroarch-LIBRETRO_DIRECTORY: New file.
* gnu/local.mk (dist_patch_DATA): Adjust accordingly.

2 files changed, 32 insertions, 41 deletions

diff --git a/gnu/packages/patches/retroarch-LIBRETRO_DIRECTORY.patch b/gnu/packages/patches/retroarch-LIBRETRO_DIRECTORY.patch
new file mode 100644
index 0000000000..30515cbe48
--- /dev/null
+++ b/gnu/packages/patches/retroarch-LIBRETRO_DIRECTORY.patch
@@ -0,0 +1,32 @@
+From f308dc91660954ab88bb41868c0b9809592923e6 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=E5=AE=8B=E6=96=87=E6=AD=A6?= <iyzsong@member.fsf.org>
+Date: Sat, 20 Feb 2021 20:37:39 +0800
+Subject: [PATCH] Allow set libretro_directory via environment variable
+
+---
+ retroarch.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/retroarch.c b/retroarch.c
+index 6a88c3108e..6807c12b5b 100644
+--- a/retroarch.c
++++ b/retroarch.c
+@@ -36038,6 +36038,15 @@ static void retroarch_parse_input_and_config(
+ #endif
+       config_load(&p_rarch->g_extern);
+ 
++   /* Override settings via environment variables */
++   if (getenv("LIBRETRO_DIRECTORY")) {
++      settings_t *settings = p_rarch->configuration_settings;
++      retroarch_override_setting_set(RARCH_OVERRIDE_SETTING_LIBRETRO_DIRECTORY, NULL);
++      configuration_set_string(settings,
++            settings->paths.directory_libretro,
++            getenv("LIBRETRO_DIRECTORY"));
++   }
++
+    /* Second pass: All other arguments override the config file */
+    optind = 1;
+ 
+-- 
+2.30.0
+
diff --git a/gnu/packages/patches/retroarch-disable-online-updater.patch b/gnu/packages/patches/retroarch-disable-online-updater.patch
deleted file mode 100644
index ea74cc5409..0000000000
--- a/gnu/packages/patches/retroarch-disable-online-updater.patch
+++ /dev/null
@@ -1,41 +0,0 @@
-From: Tobias Geerinckx-Rice <me@tobias.gr>
-Date: Fri, 29 Nov 2019 20:32:54 +0100
-Subject: [PATCH]: gnu: retroarch: Disable the on-line updater.
-
-This disables the entire ‘Online Updater’ sub-menu to address
-<http://issues.guix.gnu.org/issue/38360>.  Perhaps that is more than is
-necessary.
-
-diff -Naur a/menu/menu_displaylist.c b/menu/menu_displaylist.c
---- a/menu/menu_displaylist.c	1970-01-01 01:00:01.000000000 +0100
-+++ b/menu/menu_displaylist.c	2019-11-29 18:35:27.467948854 +0100
-@@ -8444,11 +8444,6 @@
-                      MENU_ENUM_LABEL_NETPLAY,
-                      PARSE_ACTION, false) == 0)
-                   count++;
--            if (settings->bools.menu_show_online_updater)
--               if (menu_displaylist_parse_settings_enum(info->list,
--                     MENU_ENUM_LABEL_ONLINE_UPDATER,
--                     PARSE_ACTION, false) == 0)
--                  count++;
-             if (menu_displaylist_parse_settings_enum(info->list,
-                   MENU_ENUM_LABEL_SETTINGS, PARSE_ACTION, false) == 0)
-                count++;
-diff -Naur retroarch.a/menu/menu_setting.c retroarch.c/menu/menu_setting.c
---- a/menu/menu_setting.c	1970-01-01 01:00:01.000000000 +0100
-+++ b/menu/menu_setting.c	2019-11-29 18:35:35.753957312 +0100
-@@ -7291,14 +7291,6 @@
-                &group_info,
-                &subgroup_info,
-                parent_group);
--
--         CONFIG_ACTION(
--               list, list_info,
--               MENU_ENUM_LABEL_ONLINE_UPDATER,
--               MENU_ENUM_LABEL_VALUE_ONLINE_UPDATER,
--               &group_info,
--               &subgroup_info,
--               parent_group);
- #endif
- 
-          CONFIG_ACTION(