#ifndef VMS
  max_include_len
    = max (max (sizeof (GCC_INCLUDE_DIR),
		sizeof (GPLUSPLUS_INCLUDE_DIR)),
	   sizeof ("/usr/include/CC"));
#else
  max_include_len
    = max (max (sizeof ("GNU_CC_INCLUDE"),
		sizeof ("SYS$SYSROOT:[syslib]")),
	   sizeof ("/usr/include/CC"));
#endif