title: Variadic macros with zero arguments, and commas
body: <p>Consider this macro:</p>
  
  <pre><code>#define MAKE_TEMPLATE(...) template &lt;typename T, __VA_ARGS__ &gt;
  </code></pre>
  
  <p>When used with zero arguments it produces bad code since the compiler expects an identifier after the comma. Actually, VC's preprocessor is smart enough to remove the comma, but GCC's isn't.
  Since macros can't be overloaded, it seems like it takes a separate macro for this special case to get it right, as in:</p>
  
  <pre><code>#define MAKE_TEMPLATE_Z() template &lt;typename T&gt;
  </code></pre>
  
  <p>Is there any way to make it work without introducing the second macro?</p>