I am a beginner in using Android NDK.

I am using Eclipse and I installed cygwin to build the c file to generate the .so file

But while building the c file in cygwin I am always getting the error

make: ***No rule to make target 'file.c' ... .Stop

I tried building different C codes but for every file it says the same error ..

Here is the source code:

public class ndktest extends Activity 
{
 static {   
    System.loadLibrary("ndkt");   
   }
 private native void helloLog(String logThis);  
 @Override
 public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    helloLog("this is to test log file");
 }   }

file.c

void Java_com_ndktest_helloLog(JNIEnv * env, jobject this, jstring logThis)
{
jboolean isCopy;
const char * szLogThis = (*env)->GetStringUTFChars(env, logThis, &isCopy);
(*env)->ReleaseStringUTFChars(env, logThis, szLogThis);
}

And here is my Android.mk

LOCAL_PATH := $(call my-dir)   
include $(CLEAR_VARS)   
LOCAL_LDLIBS := -llog   
LOCAL_MODULE    := ndkt 
LOCAL_SRC_FILES := file.c
include $(BUILD_SHARED_LIBRARY)  

I searched for the solution for the cause of error ... but nothing works for me.

Can anyone tell me where I am making the mistake ?

Thanks,

Siva Kumar