gnu: sdl2: Update to 2.0.12.

* gnu/packages/patches/sdl2-mesa-compat.patch: Delete file.
* gnu/packages/sdl.scm (sdl2): Update to 2.0.12.
[source]: Drop patch that was included in this release.

Signed-off-by: Marius Bakke <mbakke@fastmail.com>

gnu/local.mk

@@ -1415,7 +1415,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/scotch-build-parallelism.patch		\
   %D%/packages/patches/scotch-integer-declarations.patch	\
   %D%/packages/patches/sdl-libx11-1.6.patch			\
-  %D%/packages/patches/sdl2-mesa-compat.patch			\
   %D%/packages/patches/seahorse-gkr-use-0-on-empty-flags.patch	\
   %D%/packages/patches/seq24-rename-mutex.patch			\
   %D%/packages/patches/sharutils-CVE-2018-1000097.patch		\

gnu/packages/patches/sdl2-mesa-compat.patch

@@ -1,21 +0,0 @@
-Do not include GLES header when OpenGL headers are already included.
-
-Taken from upstream:
-https://hg.libsdl.org/SDL/rev/369b01006eb2
-
-diff -r 4cbaffd0083b -r 369b01006eb2 src/video/SDL_video.c
---- a/src/video/SDL_video.c	Fri Oct 11 06:18:24 2019 +0200
-+++ b/src/video/SDL_video.c	Sat Oct 12 18:47:56 2019 +0200
-@@ -37,9 +37,9 @@
- #include "SDL_opengl.h"
- #endif /* SDL_VIDEO_OPENGL */
- 
--#if SDL_VIDEO_OPENGL_ES
-+#if SDL_VIDEO_OPENGL_ES && !SDL_VIDEO_OPENGL
- #include "SDL_opengles.h"
--#endif /* SDL_VIDEO_OPENGL_ES */
-+#endif /* SDL_VIDEO_OPENGL_ES && !SDL_VIDEO_OPENGL */
- 
- /* GL and GLES2 headers conflict on Linux 32 bits */
- #if SDL_VIDEO_OPENGL_ES2 && !SDL_VIDEO_OPENGL
-

gnu/packages/sdl.scm

@@ -115,16 +115,15 @@ joystick, and graphics hardware.")
 (define-public sdl2
   (package (inherit sdl)
     (name "sdl2")
-    (version "2.0.10")
+    (version "2.0.12")
     (source (origin
              (method url-fetch)
              (uri
               (string-append "https://libsdl.org/release/SDL2-"
                              version ".tar.gz"))
-             (patches (search-patches "sdl2-mesa-compat.patch"))
              (sha256
               (base32
-               "0mqxp6w5jhbq6y1j690g9r3gpzwjxh4czaglw8x05l7hl49nqrdl"))))
+               "0qy8wbqvfkb5ps8kxgaaf2zzpkjqbsw712hlp74znbn0jpv6i4il"))))
     (arguments
      (substitute-keyword-arguments (package-arguments sdl)
        ((#:configure-flags flags)