title: Check for any conditional compilation symbols in C#
body: <p>Is it possible in C# to check for the existence of any conditional compilation symbol, not just one?</p>
  
  <p>For example,</p>
  
  <pre><code>#if ANY_CONDITIONAL_COMPILATION_SYMBOL_IS_DEFINED
      MessageBox.Show( "Don't forget to remove the cc symbols before shipping.");
  #else
      ...
  </code></pre>