title: Make permission errors of COCOS2dx
body: <h2>Environment</h2>
  <blockquote>
  <p>OS:windows 7 64b, environmental:eclipse 4.2, cocos2dx 2.2.1, android<br />
  ndkr9b, cygwin64</p>
  </blockquote>
  <h2>Error content</h2>
  <pre><code>Android NDK: WARNING:/cygdrive/c/cocos2d-x-2.2.1/cocos2d-x-2.2.1/projects/MyProject/proj.android/../../../cocos2dx/Android.mk:cocos2dx_static: LOCAL_LDLIBS is always ignored for static libraries    
  [armeabi] Install        : libcocos2dcpp.so =&gt; libs/armeabi/libcocos2dcpp.so
  make: execvp: install: Permission denied
  make: *** [libs/armeabi/libcocos2dcpp.so] Error 127
  /cygdrive/c/android-ndk-r9b-windows-x86_64/android-ndk-r9b/build/core/build-binary.mk:620: recipe for target 'libs/armeabi/libcocos2dcpp.so' failed
  make: Leaving directory '/cygdrive/c/cocos2d-x-2.2.1/cocos2d-x-2.2.1/projects/MyProject/proj.android'
  </code></pre>
  <p>I dont know why 'make execvp install' dont have permission.Please tell me who understand.</p>
  <h2>Tryed it.</h2>
  <ol>
  <li>I have granted 777 permissions on the relevant file</li>
  </ol>
  <p>For example,
  libs/armeabi, libcocos2dcpp.so, build_native.sh</p>