WIP SDL packages

[David Thompson <dthompson2@worcester.edu>]

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Hello all,

Attached is a work-in-progress patch that adds SDL and SDL2 packages.

I'm having some trouble getting the dependencies sorted out. For
instance, pulseaudio is listed as an input but the configure script does
not detect pulseaudio support. Both packages build successfully, but
they are probably missing other optional dependencies.

Would anyone mind taking a look and giving some feedback?

Here is the nixpkgs definition for reference:
https://github.com/nbp/Nixpkgs/blob/master/pkgs/development/libraries/SDL/default.nix

Thanks,
- Dave

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From f58fb0c23c7acbffb164ef7aa7095c28a4c7b4e4 Mon Sep 17 00:00:00 2001
From: David Thompson <dthompson2@worcester.edu>
Date: Mon, 18 Nov 2013 22:01:19 -0500
Subject: [PATCH] gnu: Add SDL and SDL2.

* gnu/packages/sdl.scm (sdl, sdl2): New variables.
---
 gnu/packages/sdl.scm | 45 ++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 44 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/sdl.scm b/gnu/packages/sdl.scm
index ceb2173..dbc53bb 100644
--- a/gnu/packages/sdl.scm
+++ b/gnu/packages/sdl.scm
@@ -23,8 +23,51 @@
   #:use-module (guix download)
   #:use-module (guix build-system gnu)
   #:use-module (gnu packages linux)
+  #:use-module (gnu packages pulseaudio)
   #:use-module (gnu packages xorg)
-  #:export (libmikmod))
+  #:export (sdl
+            sdl2
+            libmikmod))
+
+(define sdl
+  (package
+    (name "sdl")
+    (version "1.2.15")
+    (source (origin
+             (method url-fetch)
+             (uri
+              (string-append "http://libsdl.org/release/SDL-"
+                             version ".tar.gz"))
+             (sha256
+              (base32
+               "005d993xcac8236fpvd1iawkz4wqjybkpn8dbwaliqz5jfkidlyn"))))
+    (build-system gnu-build-system)
+    (arguments '(#:tests? #f)) ; no check target
+    (inputs `(("libx11" ,libx11)
+              ("libxrandr" ,libxrandr)
+              ("mesa" ,mesa)
+              ("alsa-lib" ,alsa-lib)
+              ("pulseaudio" ,pulseaudio)))
+    (synopsis "Cross platform game development library")
+    (description "Simple DirectMedia Layer is a cross-platform development
+library designed to provide low level access to audio, keyboard, mouse,
+joystick, and graphics hardware.")
+    (home-page "http://libsdl.org/")
+    (license lgpl2.1)))
+
+(define sdl2
+  (package (inherit sdl)
+    (name "sdl2")
+    (version "2.0.0")
+    (source (origin
+             (method url-fetch)
+             (uri
+              (string-append "http://libsdl.org/release/SDL2-"
+                             version ".tar.gz"))
+             (sha256
+              (base32
+               "0y3in99brki7vc2mb4c0w39v70mf4h341mblhh8nmq4h7lawhskg"))))
+    (license bsd-3)))
 
 (define libmikmod
   (package
-- 
1.8.4.2