title: How do I bind C-= in emacs?
body: <p>This s-expression in my <code>.emacs</code> file does not produce the desired result:</p>
  
  <pre><code>(define-key global-map (kbd "C-=") 'djhaskin987-untab-to-tab-stop)
  </code></pre>
  
  <p>Why can't I bind a command to <kbd>Ctrl</kbd>+<kbd>=</kbd>? </p>
  
  <p><strong>EDIT</strong> for clarification:</p>
  
  <p>I am using <code>emacs23-nox</code> on the standard build of <code>urxvt-256colors</code> for Debian, except that I have recompiled with <code>--disable-iso405776</code> (or something to that effect) it so that <kbd>Ctrl</kbd>+<kbd>Shift</kbd> doesn't do the weird 'insert character' thing. I don't know if this affects anything. For example, <kbd>C-M-i</kbd> sends <kbd>M-TAB</kbd>, which I don't understand.</p>
  
  <p><strong>EDIT II</strong>:</p>
  
  <p>I apologize for not making this clear. The function <code>djhaskin987-untab-to-tab-stop</code> has the line <code>(interactive)</code> in it. This part works.</p>