[bug#30380] gnu: Add dolphin-emulator.

["Thompson, David" <dthompson2@worcester.edu>]

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Here a couple of patches that add the Dolphin emulator.  I used a Git
snapshot because the project goes *years* between releasing official
source tarballs while at the same time directing users to use binaries
built from the latest commit in their Git repo, so I think packaging
the Git source aligns best with what a Dolphin user would expect.

- Dave

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From b09950c2847be7f17ea57906714f74a5ca2f671b Mon Sep 17 00:00:00 2001
From: David Thompson <davet@gnu.org>
Date: Wed, 7 Feb 2018 06:28:46 -0500
Subject: [PATCH 1/2] gnu: Add wxwidgets-gtk2-3.1.

* gnu/packages/wxwidgets.scm (wxwidgets-gtk2-3.1): New variable.
---
 gnu/packages/wxwidgets.scm | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/gnu/packages/wxwidgets.scm b/gnu/packages/wxwidgets.scm
index 84446d8ef..9f7a87ca4 100644
--- a/gnu/packages/wxwidgets.scm
+++ b/gnu/packages/wxwidgets.scm
@@ -126,6 +126,14 @@ and many other languages.")
               ((#:configure-flags flags)
                `(cons "--enable-mediactrl" ,flags))))))
 
+(define-public wxwidgets-gtk2-3.1
+  (package (inherit wxwidgets-3.1)
+           (inputs `(("gtk+" ,gtk+-2)
+                     ,@(alist-delete
+                        "gtk+"
+                        (package-inputs wxwidgets-3.1))))
+           (name "wxwidgets-gtk2")))
+
 (define-public python2-wxpython
   (package
     (name "python2-wxpython")
-- 
2.16.1


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From f3793694d8313a242195315214dd829685f6d52d Mon Sep 17 00:00:00 2001
From: David Thompson <davet@gnu.org>
Date: Wed, 7 Feb 2018 06:29:28 -0500
Subject: [PATCH 2/2] gnu: Add dolphin-emulator.

* gnu/packages/games.scm (dolphin-emulator): New variable.
---
 gnu/packages/games.scm | 77 +++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 76 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/games.scm b/gnu/packages/games.scm
index e2f855aa5..3f50945d6 100644
--- a/gnu/packages/games.scm
+++ b/gnu/packages/games.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013 John Darrington <jmd@gnu.org>
 ;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
-;;; Copyright © 2014, 2015, 2016 David Thompson <dthompson2@worcester.edu>
+;;; Copyright © 2014, 2015, 2016, 2018 David Thompson <dthompson2@worcester.edu>
 ;;; Copyright © 2014, 2015, 2016, 2017 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2014 Cyrill Schenkel <cyrill.schenkel@gmail.com>
 ;;; Copyright © 2014 Sylvain Beucler <beuc@beuc.net>
@@ -88,6 +88,7 @@
   #:use-module (gnu packages libcanberra)
   #:use-module (gnu packages libedit)
   #:use-module (gnu packages libunwind)
+  #:use-module (gnu packages libusb)
   #:use-module (gnu packages haskell)
   #:use-module (gnu packages mp3)
   #:use-module (gnu packages music)
@@ -5526,3 +5527,77 @@ hacking the gamification of contribution graphs on platforms such as
 Github or Gitlab.")
     (home-page "https://github.com/umayr/badass")
     (license license:expat))))
+
+;; Building from recent Git because the official 5.0 release no longer builds.
+(define-public dolphin-emulator
+  (let ((commit "d04b179111f8d863f360839474cb82c766f762b8")
+        (revision "0"))
+    (package
+      (name "dolphin-emulator")
+      (version (git-version "5.0" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/dolphin-emu/dolphin.git")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32
+           "0g725wmhlim73zrhi47wmr1bmplpy4b7sbimd5pm8xpfhj5nm10l"))))
+      (build-system cmake-build-system)
+      (arguments
+       '(#:tests? #f
+         ;; The FindGTK2 cmake script only checks hardcoded directories for
+         ;; glib/gtk headers.
+         #:configure-flags
+         (list (string-append "-DGTK2_GDKCONFIG_INCLUDE_DIR="
+                              (assoc-ref %build-inputs "gtk+")
+                              "/lib/gtk-2.0/include")
+               (string-append "-DGTK2_GLIBCONFIG_INCLUDE_DIR="
+                              (assoc-ref %build-inputs "glib")
+                              "/lib/glib-2.0/include")
+               (string-append "-DX11_INCLUDE_DIR="
+                              (assoc-ref %build-inputs "libx11")
+                              "/include")
+               (string-append "-DX11_LIBRARIES="
+                              (assoc-ref %build-inputs "libx11")
+                              "/lib/libX11.so")
+               "-DX11_FOUND=1"
+               "-DENABLE_QT2=False"))) ; disable qt frontend
+      (native-inputs
+       `(("pkg-config" ,pkg-config)
+         ("gettext" ,gnu-gettext)))
+      (inputs
+       `(("alsa-lib" ,alsa-lib)
+         ("ao" ,ao)
+         ("bluez" ,bluez)
+         ("eudev" ,eudev)
+         ("ffmpeg" ,ffmpeg)
+         ("glew" ,glew)
+         ("glib" ,glib)
+         ("glu" ,glu)
+         ("gtk+" ,gtk+-2)
+         ("libevdev" ,libevdev)
+         ("libpng" ,libpng)
+         ("libusb" ,libusb)
+         ("libx11" ,libx11)
+         ("libxi" ,libxi)
+         ("libxrandr" ,libxrandr)
+         ("lzo" ,lzo)
+         ("mesa" ,mesa)
+         ("miniupnpc" ,miniupnpc)
+         ("openal" ,openal)
+         ("pulseaudio" ,pulseaudio)
+         ("sdl2" ,sdl2)
+         ("soil" ,soil)
+         ("soundtouch" ,soundtouch)
+         ("wxwidgets" ,wxwidgets-gtk2-3.1)
+         ("zlib" ,zlib)))
+      (home-page "https://dolphin-emu.org/")
+      (synopsis "Nintendo Wii and GameCube emulator")
+      (description
+       "Dolphin is an emulator for two Nintendo video game consoles: the
+GameCube and the Wii.  It provides compatibility with all PC controllers,
+turbo speed, networked multiplayer, and graphical enhancements.")
+      (license license:gpl2))))
-- 
2.16.1