Android doesn't have libunwind.h in API 16
diff --git a/include/SDL_config_android.h b/include/SDL_config_android.h
index 4663819..f218216 100644
--- a/include/SDL_config_android.h
+++ b/include/SDL_config_android.h
@@ -46,7 +46,6 @@
#define HAVE_STDIO_H 1
#define HAVE_STRING_H 1
#define HAVE_SYS_TYPES_H 1
-#define HAVE_LIBUNWIND_H 1
/* C library functions */
#define HAVE_MALLOC 1