contribs: Import VLC's SDL rules

contribs/src/sdl/rules.mak

+# SDL
+
+SDL_VERSION := 1.2.15
+SDL_URL := http://www.libsdl.org/release/SDL-$(SDL_VERSION).tar.gz
+
+#PKGS += sdl
+ifeq ($(call need_pkg,"sdl"),)
+PKGS_FOUND += sdl
+endif
+
+$(TARBALLS)/SDL-$(SDL_VERSION).tar.gz:
+	$(call download_pkg,$(SDL_URL),sdl)
+
+.sum-sdl: SDL-$(SDL_VERSION).tar.gz
+
+sdl: SDL-$(SDL_VERSION).tar.gz .sum-sdl
+	$(UNPACK)
+	$(APPLY) $(SRC)/sdl/direct_palette_ref.diff
+	$(MOVE)
+
+SDLCONF := $(HOSTCONF) \
+	--disable-audio \
+	--enable-video \
+	--enable-events \
+	--disable-joystick \
+	--disable-cdrom \
+	--disable-threads \
+	--disable-timers \
+	--disable-file \
+	--disable-assembly \
+	--disable-video-x11 \
+	--disable-video-aalib \
+	--disable-video-dga \
+	--disable-video-fbcon \
+	--disable-video-directfb \
+	--disable-video-ggi \
+	--disable-video-svga \
+	--disable-directx \
+	--disable-sdl-dlopen
+
+.sdl: sdl
+	cd $< && $(HOSTVARS) ./configure $(SDLCONF)
+	cd $< && $(MAKE) install
+	touch $@