Added some android build stuff

Makefile.android

+# Makefile to build the SDL library
+
+ANDROID_NDK=/home/paul/Projects/gsoc/sdk/android-ndk-r4
+TOOLS_PATH=$(ANDROID_NDK)/build/prebuilt/linux-x86/arm-eabi-4.2.1/bin
+ANDROID_INCLUDES = 	-I$(ANDROID_NDK)/build/platforms/android-4/common/include \
+					-I$(ANDROID_NDK)/build/platforms/android-4/arch-arm/usr/include 
+INCLUDE = -I./include
+CFLAGS  = -g -O2 $(INCLUDE) $(ANDROID_INCLUDES) -DANDROID -static
+
+AR	= $(TOOLS_PATH)/arm-eabi-ar
+RANLIB	= $(TOOLS_PATH)/arm-eabi-ranlib
+CC = $(TOOLS_PATH)/arm-eabi-gcc
+
+
+CONFIG_H = include/SDL_config.h
+TARGET  = libSDL.a
+SOURCES = \
+	src/*.c \
+	src/audio/*.c \
+	src/cpuinfo/*.c \
+	src/events/*.c \
+	src/file/*.c \
+	src/joystick/*.c \
+	src/haptic/*.c \
+	src/stdlib/*.c \
+	src/thread/*.c \
+	src/timer/*.c \
+	src/video/*.c \
+	src/power/*.c \
+	src/audio/dummy/*.c \
+	src/video/dummy/*.c \
+	src/joystick/dummy/*.c \
+	src/haptic/dummy/*.c \
+	src/atomic/dummy/*.c \
+	src/thread/generic/*.c \
+	src/timer/dummy/*.c \
+	src/loadso/dummy/*.c \
+
+OBJECTS = $(shell echo $(SOURCES) | sed -e 's,\.c,\.o,g')
+
+all: $(TARGET)
+
+$(TARGET): $(CONFIG_H) $(OBJECTS)
+	$(AR) crv $@ $^
+	$(RANLIB) $@
+
+$(CONFIG_H):
+	cp $(CONFIG_H).default $(CONFIG_H)
+
+clean:
+	rm -f $(TARGET) $(OBJECTS)

include/SDL_config_android.h

+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2010 Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+
+#ifndef _SDL_config_android_h
+#define _SDL_config_android_h
+
+#include "SDL_platform.h"
+
+/**
+ *  \file SDL_config_android.h
+ *  
+ *  This is a configuration that can be used to build SDL for Android
+ */
+
+#include <stdarg.h>
+
+/*
+typedef signed char int8_t;
+typedef unsigned char uint8_t;
+typedef signed short int16_t;
+typedef unsigned short uint16_t;
+typedef signed int int32_t;
+typedef unsigned int uint32_t;
+*/
+
+#define SIZEOF_VOIDP 4
+
+typedef unsigned int size_t;
+//typedef unsigned long uintptr_t;
+
+#define SDL_AUDIO_DRIVER_DUMMY	1
+
+#define SDL_CDROM_DISABLED 1
+
+#define SDL_HAPTIC_DISABLED 1
+
+#define SDL_JOYSTICK_DISABLED 1
+
+#define SDL_LOADSO_DISABLED 1
+
+#define SDL_THREADS_DISABLED 1
+
+#define SDL_TIMERS_DISABLED	1
+
+#define SDL_TIMER_UNIX 1
+
+#define SDL_VIDEO_DRIVER_DUMMY 1
+
+#define HAVE_STDIO_H 1
+#define HAVE_SYS_TYPES_H 1
+
+#endif /* _SDL_config_minimal_h */
+