opencv make file for native C++ project for android build

LOCAL_PATH := $(call my-dir)
OPENCV_SDK_PATH := /Users/mnguyen/Development/OpenCV-2.4.9-android-sdk
include $(CLEAR_VARS)
OPENCV_INSTALL_MODULES:=on
OPENCV_CAMERA_MODULES:=off
OPENCV_LIB_TYPE:=STATIC

include $(OPENCV_SDK_PATH)/sdk/native/jni/OpenCV.mk

LOCAL_MODULE    := libhlcam-scoring
NDKROOT := /Users/mnguyen/Development/ndk

LOCAL_CFLAGS    :=  \
                -I/usr/local/include  \
                -I$(LOCAL_PATH)/include \
                -I$(LOCAL_PATH)/../integration/include \
                -I$(OPEN_SDK_PATH)/sdk/native/jni/include

LOCAL_SRC_FILES :=  \
                    src/audio_scoring.cpp \
                    src/audio_reading.cpp \
                    src/face_tracking.cpp \
                    src/motion_tracking.cpp \
                    src/score_read.cpp \
                    src/score_write.cpp \
                    src/video_scoring.cpp \
                    src/scoring_main.cpp \

LOCAL_LDLIBS += -lopencv_core
#-lopencv_highgui -lopencv_imgproc -lopencv_ml -lopencv_video -lopencv_features2d -lopencv_flann -lopencv_objdetect -lopencv_calib3d

LOCAL_LDFLAGS  += -Wl,--no-as-needed
LOCAL_SHARED_LIBRARIES :=  libprotobuf  libhlcam-common libopencv_core

include $(BUILD_SHARED_LIBRARY)