giving the android jni a start up function OnLoad

android/android-jni/jni/image_pool.cpp

@@ -5,6 +5,16 @@
 #include <android/log.h>
 #include <opencv2/imgproc/imgproc.hpp>
 
+#define  LOG_TAG    "libandroid-opencv"
+#define  LOGI(...)  __android_log_print(ANDROID_LOG_INFO,LOG_TAG,__VA_ARGS__)
+#define  LOGE(...)  __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__)
+
+JNIEXPORT jint JNI_OnLoad(JavaVM* vm, void* reserved)
+{
+JNIEnv *env;
+LOGI("JNI_OnLoad called for opencv");
+return JNI_VERSION_1_4;
+}
 
 JNIEXPORT void JNICALL Java_com_opencv_jni_opencvJNI_addYUVtoPool(JNIEnv * env,
 		jclass thiz, jlong ppool, jobject _jpool, jbyteArray jbuffer,