title: How to print out a variable in makefile
body: <p>In my makefile, I have a variable 'NDK_PROJECT_PATH', my question is how can I print it out when it compiles?</p>
  
  <p>I read <a href="https://stackoverflow.com/questions/3707517/make-file-echo-displaying-path-string">Make file echo displaying &quot;$PATH&quot; string</a> and I tried:</p>
  
  <pre><code>@echo $(NDK_PROJECT_PATH)
  @echo $(value NDK_PROJECT_PATH)
  </code></pre>
  
  <p>Both gives me </p>
  
  <pre><code>"build-local.mk:102: *** missing separator.  Stop."
  </code></pre>
  
  <p>Any one knows why it is not working for me?</p>