title: Upgrade gnu make on mac
body: <p>I am trying to upgrade gnu make version to 4.1 on my mac, but I couldn't install successfully. Here are what I did so far:<br>
  1. install xcode v8.2.1<br>
  2. manually upgrade gnu make with the following commands.  </p>
  
  <pre><code># Download gnu make-4.1.tar.gz from gnu website.
  ./configure
  make 
  sudo make install
  </code></pre>
  
  <p>This doesn't make my <code>make</code> version to v4.1 when I type <code>make --version</code> on my terminal.<br>
  3. Running <code>xcode-select --install</code> on command line didn't solve the problem either.</p>
  
  <p>My system info:</p>
  
  <pre><code>$ sw_vers -productVersion
  $ v10.12.4
  $ cmake --version
  $ v3.10.0
  $ make --version
  $ 3.81
  </code></pre>
  
  <p>Thanks.</p>