title: Hide clang warnings using makefile
body: <p>I have a makefile with the following lines:</p>
  
  <pre><code>CXX=clang++
  CXXFLAGS=-g -std=c++11 -pedantic -Wno-c++11-extensions
  </code></pre>
  
  <p>I am still getting this:</p>
  
  <p><code>warning: 'auto' type specifier is a C++11 extension [-Wc++11-extensions]</code></p>
  
  <p>Is there a way that I can hide the warning using the makefile? </p>