Thanks for your comments about macros.

[Michael Yoke]

   Thanks to all of you who responded to my question about using macros.
   I apologize for bringing up an ancient topic, I was just looking for
   an approach that would work regardless of how the existing code was
   written.  I think the "do { stuff } while (0)" approach is probably the
   safest way to go. 

   Thanks again,

   Mike