+ *#* Revision 1.6 2006/02/15 09:12:33 bernie
+ *#* Don't mask useful user signals on UNIX.
+ *#*
+ *#* Revision 1.5 2005/11/27 23:32:42 bernie
+ *#* Add CPU fallback for OS_ID.
+ *#*
+ *#* Revision 1.4 2005/11/27 03:07:13 bernie
+ *#* IRQ_SAVE_DISABLE(): Really block signals.
+ *#*