I noticed at the end of /usr/X11R6/lib/X11/config/NetBSD.cf on my 1.4.2
sparc, the following extra (extra compared to 1.4.1/sparc or
1.4.2/pmax or NetBSD.cf,v 1.66 2000/03/01 12:12:40)
lines at the end:


#if defined(m68kArchitecture) || defined(SparcArchitecture) ||
defined(VaxArchitecture)
/* || defined(pmaxArchitecture) */
/* DO NOT USE THIS ON ALPHA because they don't use -O2 */  
/* FIXME: we need to append to, not replace, the original flags */
#undef  OptimizedCDebugFlags
#define OptimizedCDebugFlags    -O2 -pipe -B/cc1hack/
#endif


It wasn't there in 1.4.1 and I can't seem to find where it got added.

My real question though, is what this "-B/cc1hack/" is for?

Thanks

-Dan