Updated SDL2 to the 2.0.4 release version

jni/SDL2-2.0.4/test/testver.c

@@ -0,0 +1,47 @@
+/*
+  Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely.
+*/
+
+/* Test program to compare the compile-time version of SDL with the linked
+   version of SDL
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "SDL.h"
+#include "SDL_revision.h"
+
+int
+main(int argc, char *argv[])
+{
+    SDL_version compiled;
+    SDL_version linked;
+
+    /* Enable standard application logging */
+    SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
+
+#if SDL_VERSION_ATLEAST(2, 0, 0)
+    SDL_Log("Compiled with SDL 2.0 or newer\n");
+#else
+    SDL_Log("Compiled with SDL older than 2.0\n");
+#endif
+    SDL_VERSION(&compiled);
+    SDL_Log("Compiled version: %d.%d.%d.%d (%s)\n",
+           compiled.major, compiled.minor, compiled.patch,
+           SDL_REVISION_NUMBER, SDL_REVISION);
+    SDL_GetVersion(&linked);
+    SDL_Log("Linked version: %d.%d.%d.%d (%s)\n",
+           linked.major, linked.minor, linked.patch,
+           SDL_GetRevisionNumber(), SDL_GetRevision());
+    SDL_Quit();
+    return (0);
+}