Added Android build target

Makefile

Index: Makefile
===================================================================
--- a/Makefile
+++ b/Makefile
@@ -1,13 +1,36 @@
 ARCH := x64
 
-.PHONY: test
+ANDROID_PARAMETERS = target_arch=arm OS=android
+ANDROID_PARAMETERS += android_target_arch=arm
+ANDROID_PARAMETERS += arm_neon=0 armv7=0 arm_fpu=off vfp3=off
+
+.PHONY: all test clean v8_android android
 
 all:
 	third_party/gyp/gyp --depth=. -f make -I common.gypi --generator-output=build -Dtarget_arch=$(ARCH) libadblockplus.gyp
 	$(MAKE) -C build
 
 test: all
 	build/out/Debug/tests
 
 clean:
 	$(RM) -r build
+
+v8_android:
+	mkdir -p third_party/v8/build/gyp
+	cp -f third_party/v8_gyp_launcher third_party/v8/build/gyp/gyp
+	DEFINES="${ANDROID_PARAMETERS}" \
+	OUTDIR=../../build \
+	$(MAKE) -C third_party/v8 android_arm.release
+
+android: v8_android
+	GYP_DEFINES="${ANDROID_PARAMETERS}" \
+	third_party/gyp/gyp --depth=. -f make -I common.gypi --generator-output=build -Gandroid_ndk_version=r8e libadblockplus.gyp
+	ndk-build -C build installed_modules \
+	BUILDTYPE=Release \
+	APP_PLATFORM=android-9 \
+	APP_STL=gnustl_static \
+	APP_BUILD_SCRIPT=Makefile \
+	NDK_PROJECT_PATH=. \
+	NDK_OUT=. \
+	NDK_APP_DST_DIR=android_arm.release