Update SDL2 to 2.0.4

code/SDL2/include/SDL_config_android.h

@@ -1,6 +1,6 @@
 /*
   Simple DirectMedia Layer
-  Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
+  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
@@ -43,7 +43,6 @@
 #define HAVE_STDINT_H   1
 #define HAVE_CTYPE_H    1
 #define HAVE_MATH_H 1
-#define HAVE_SIGNAL_H   1
 
 /* C library functions */
 #define HAVE_MALLOC 1
@@ -76,7 +75,6 @@
 #define HAVE_STRTOULL   1
 #define HAVE_STRTOD 1
 #define HAVE_ATOI   1
-#define HAVE_ATOF   1
 #define HAVE_STRCMP 1
 #define HAVE_STRNCMP    1
 #define HAVE_STRCASECMP 1
@@ -100,10 +98,13 @@
 #define HAVE_SIN    1
 #define HAVE_SINF   1
 #define HAVE_SQRT   1
-#define HAVE_SIGACTION  1
+#define HAVE_SQRTF  1
+#define HAVE_TAN    1
+#define HAVE_TANF   1
 #define HAVE_SETJMP 1
 #define HAVE_NANOSLEEP  1
 #define HAVE_SYSCONF    1
+#define HAVE_CLOCK_GETTIME	1
 
 #define SIZEOF_VOIDP 4
 
@@ -138,7 +139,7 @@
 /* Enable system power support */
 #define SDL_POWER_ANDROID 1
 
-/* !!! FIXME: what does Android do for filesystem stuff? */
-#define SDL_FILESYSTEM_DUMMY   1
+/* Enable the filesystem driver */
+#define SDL_FILESYSTEM_ANDROID   1
 
 #endif /* _SDL_config_android_h */