For Mach-386 2.6 system.  Should work on other Mach 2.5 or 2.6 systems.
SIGTYPE	int 
HAVE_UNDERSCORE_SETJMP	1 
STRERROR_MISSING	1 
STRFTIME_MISSING	1 
STRTOD_MISSING	1 
STRTOL_MISSING	1 
TZNAME_MISSING	1
BSDSTDIO		1 
