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From: "Alfred M. Szmidt" <ams@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Another small problem of CC Mode
Date: Fri, 12 Jan 2007 04:13:47 +0100 (CET)
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Xref: news.gmane.org gmane.emacs.devel:65159
Archived-At: <http://permalink.gmane.org/gmane.emacs.devel/65159>

   Of course, this is rare.  But will making CC Mode detect this
   situation and behave in a right way need much effort?

Not exactly the answer you are looking for, but reorganising your code
in the following manner would make CC mode behave properly.

#ifdef M1
extern void g(void);
# define M g
#else 
extern void h(void);
# define M h
#endif

int
f(void)
{
  do {
  } while (M());
}

Happy hacking.