- add sdl2

package/sdl2/patches/0001-src-video-kmsdrm-SDL_kmsdrmvideo.c-fix-build.patch

@@ -0,0 +1,39 @@
+From d265b1ee94aa4faf5fa405f14cc731a25d7a00ab Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Tue, 24 Mar 2020 14:11:14 +0100
+Subject: [PATCH] src/video/kmsdrm/SDL_kmsdrmvideo.c: fix build
+
+Build is broken without EGL since version 2.0.12 and
+https://hg.libsdl.org/SDL/rev/9761858bd6a3:
+
+/home/giuliobenetti/autobuild/run/instance-1/output-1/build/sdl2-2.0.12/src/video/kmsdrm/SDL_kmsdrmvideo.c: In function 'KMSDRM_CreateSurfaces':
+/home/giuliobenetti/autobuild/run/instance-1/output-1/build/sdl2-2.0.12/src/video/kmsdrm/SDL_kmsdrmvideo.c:394:5: error: unknown type name 'EGLContext'
+     EGLContext egl_context;
+     ^
+
+Fixes:
+ - http://autobuild.buildroot.org/results/fafd20a01591032662f9ca025fcea3478239cf3c
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+
+[Upstream: https://hg.libsdl.org/SDL/rev/389ce8cfa2a3]
+
+
+Fixes: 
+ - Update patch to version 2.0.14
+
+Signed-off-by: Michael Fischer <mf@go-sys.de>
+
+diff -purN a/src/video/kmsdrm/SDL_kmsdrmvideo.c b/src/video/kmsdrm/SDL_kmsdrmvideo.c
+--- a/src/video/kmsdrm/SDL_kmsdrmvideo.c	2021-01-08 09:56:44.028217792 +0100
++++ b/src/video/kmsdrm/SDL_kmsdrmvideo.c	2021-01-08 09:55:52.295932111 +0100
+@@ -1407,7 +1407,9 @@ KMSDRM_CreateSurfaces(_THIS, SDL_Window
+     uint32_t surface_flags = GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING;
+     uint32_t width, height;
+ 
++#if SDL_VIDEO_OPENGL_EGL
+     EGLContext egl_context;
++#endif
+ 
+     int ret = 0;
+ 

package/sdl2/sdl2.mk

@@ -0,0 +1,51 @@
+################################################################################
+#
+# sdl2
+#
+################################################################################
+
+SDL2_VERSION = 2.0.14
+SDL2_DIR = SDL2-$(SDL2_VERSION)
+SDL2_SOURCE = SDL2-$(SDL2_VERSION).tar.gz
+SDL2_SITE = http://www.libsdl.org/release
+
+$(DL_DIR)/$(SDL2_SOURCE):
+	$(DOWNLOAD) $(SDL2_SITE)/$(SDL2_SOURCE)
+
+SDL2_DEPENDENCIES = alsa-lib
+
+SDL2_CONFIG_SCRIPTS = sdl2-config
+
+SDL2_CONF_OPTS += \
+	--datarootdir=$(REMOVE_datarootdir) \
+	--enable-static \
+	--disable-3dnow \
+	--disable-arts \
+	--disable-dbus \
+	--disable-esd \
+	--disable-input-tslib \
+	--disable-libudev \
+	--disable-pulseaudio \
+	--disable-sse \
+	--disable-video-directfb \
+	--disable-video-kmsdrm \
+	--disable-video-opengl \
+	--disable-video-rpi \
+	--disable-video-wayland \
+	--disable-video-x11 \
+	--enable-alsa \
+	--enable-video-opengles \
+	--without-x
+
+sdl2: $(DL_DIR)/$(SDL2_SOURCE) | $(TARGET_DIR)
+	$(REMOVE)/$(PKG_DIR)
+	$(UNTAR)/$(PKG_SOURCE)
+	$(CHDIR)/$(PKG_DIR); \
+		$(APPLY_PATCHES); \
+		$(CONFIGURE); \
+		$(MAKE); \
+		$(MAKE) install DESTDIR=$(TARGET_DIR)
+	-rm -r $(TARGET_libdir)/cmake
+	$(REWRITE_CONFIG_SCRIPTS)
+	$(REMOVE)/$(PKG_DIR)
+	$(TOUCH)