title: NDK-Build how to rebuild project?
body: <p>I am using a dual project structure cocos2d-x for windows and android, and using cygwin to build my project, at first it build the whole solution:</p>
  
  <h1>build</h1>
  
  <p>$ANDROID_NDK_ROOT/ndk-build -C $GAME_ANDROID_ROOT $*</p>
  
  <p>but in posterior builds it does not build my modified files. How do I force it to rebuild the whole project?</p>