gnu: dolphin-emu: Patch data.

This resolves a hang in the menu of the WaveRace game.

* gnu/packages/patches/dolphin-emu-data.patch: New file.
* gnu/packages/patches/libretro-dolphin-emu-data.patch: Likewise.
* gnu/local.mk (dist_patch_DATA): Register them.
* gnu/packages/emulators.scm (dolphin-emu) [source]: Apply dolphin-emu patch.
(libretro-dolphin-emu) [source]: Apply libretro-dolphin-emu patch.

Reviewed-by: Sou Bunnbu (宋文武) <iyzsong@member.fsf.org>
Change-Id: Ie22a7bba527724179f5296a44f1874d2efdbd94c

3 files changed, 36 insertions, 2 deletions

diff --git a/gnu/packages/emulators.scm b/gnu/packages/emulators.scm
index 43d8d2bdf72..f20b6da79b3 100644
--- a/gnu/packages/emulators.scm
+++ b/gnu/packages/emulators.scm
@@ -337,7 +337,8 @@ console.")
              (substitute* "CMakeLists.txt"
                ((".*add_subdirectory.*Externals/enet.*") "")
                ((".*add_subdirectory.*Externals/soundtouch.*") "")
-               ((".*add_subdirectory.*Externals/xxhash.*") ""))))))
+               ((".*add_subdirectory.*Externals/xxhash.*") ""))))
+         (patches (search-patches "dolphin-emu-data.patch"))))
       (build-system cmake-build-system)
       (arguments
        (list
@@ -499,7 +500,8 @@ turbo speed, networked multiplayer, and graphical enhancements.")
                 (file-name (git-file-name name version))
                 (sha256
                  (base32
-                  "1fvm6hy0ihc0j3sgv88a7ak08c0kyikmmiif827j981fy7zvglvz"))))
+                  "1fvm6hy0ihc0j3sgv88a7ak08c0kyikmmiif827j981fy7zvglvz"))
+                (patches (search-patches "libretro-dolphin-emu-data.patch"))))
       (arguments
        (substitute-keyword-arguments (package-arguments dolphin-emu)
          ((#:configure-flags flags ''())
diff --git a/gnu/packages/patches/dolphin-emu-data.patch b/gnu/packages/patches/dolphin-emu-data.patch
new file mode 100644
index 00000000000..6ba959b9291
--- /dev/null
+++ b/gnu/packages/patches/dolphin-emu-data.patch
@@ -0,0 +1,15 @@
+Resolve a hang in the menu of this game.
+
+Upstream-status: https://github.com/dolphin-emu/dolphin/pull/13285
+
+diff --git a/Data/Sys/GameSettings/GWR.ini b/Data/Sys/GameSettings/GWR.ini
+new file mode 100644
+index 0000000000..fdbc0c312f
+--- /dev/null
++++ b/Data/Sys/GameSettings/GWR.ini
+@@ -0,0 +1,5 @@
++# GWR - WAVE RACE / BLUE STORM
++
++[Core]
++# Disable multi-threading to avoid a hang in the game menu.
++CPUThread = False
diff --git a/gnu/packages/patches/libretro-dolphin-emu-data.patch b/gnu/packages/patches/libretro-dolphin-emu-data.patch
new file mode 100644
index 00000000000..e98660d8abc
--- /dev/null
+++ b/gnu/packages/patches/libretro-dolphin-emu-data.patch
@@ -0,0 +1,17 @@
+Resolve a hang in the menu of this game.
+
+Upstream-status: https://github.com/libretro/dolphin/pull/337
+
+diff --git a/Data/Sys/GameSettings/GWR.ini b/Data/Sys/GameSettings/GWR.ini
+new file mode 100644
+index 0000000000..a55f4d29cd
+--- /dev/null
++++ b/Data/Sys/GameSettings/GWR.ini
+@@ -0,0 +1,7 @@
++# GWR - WAVE RACE / BLUE STORM
++
++[Core]
++# Disable multi-threading to avoid a hang in the game menu.
++# TODO: Change to 'CPUThread = False' after rebasing to latest
++# upstream (see commit 869edd5a66).
++SyncGPU = True