What does "munch" in C++ and/or Concurrent C do?

[Scott Hammond]

Can someone enlighten me as to what "munch" does for C++ and/or
for Concurrent C?  I know it performs some sort of manipulations
on the object file but that's all I know.  It also seems to add
a lot to compile time and I want to know if I can do without it.

I'm actually specifically interested in Concurrent C, but since
it uses nearly the same parser as C++, I gather that "munch" is
doing the same thing for both.  Thanks for any information.
My apologies if this is a naive question.
--
Scott Hammond,  R & D Associates, Marina del Rey, CA  (213) 822-1715
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:  scott at harris.cis.ksu.edu