title: Different tab indent settings in different modes
body: <p>I'm currently using <code>whitespace-cleanup</code> in my save hook. Using <code>indent-tabs-mode</code>, I'm able to save files without any tabs.</p>
  
  <p>All is well, I don't want tabs in my files. But.</p>
  
  <p>Makefiles do need tabs. That is my problem. How do I change my settings for makefile-mode?</p>
  
  <p>I tried to <code>setq</code> either <code>indent-tabs-mode</code> (the doc says it becomes buffer-local) or <code>whitespace-style</code>, it does not work.</p>