Version:           CVS (using KDE KDE 3.1)
Installed from:    RedHat RPMs

a.h looks like:

#define TAG(x) r200_##x##_elts
#include <b.h>

#define TAG(x) r200_##x##_elxd
#include <b.h>


b.h looks like:

static void TAG(emit)( GLcontext *ctx,
		       GLuint start, GLuint end,
		       void *dest )
{
}

Problem reporter flags TAG(emit) in b.h with five errors. 

If I put the #define in b.h the errors go away so this as an issue with processing include files in correct order. It's not obvious to me how to fix this.