* DevNotes: Add entry cgf-000010.

* select.cc (set_handle_or_return_if_not_open): Remove unneeded final backslash
from definition.
(cygwin_select): Reorganize to incorporate outer retry loop.  Move remaining
time recalculation here for retry case.  Use select_stuff::wait_states for loop
control.
(select_stuff::cleanup): Avoid unneeded initialization.
(select_stuff::wait): Modify definition to return select_stuff::wait_states.
Eliminate is_cancelable.  Don't element 1 of an array if it is a cancel handle.
Remove loop.  Rely on being called from enclosing loop in cygwin_select.
Remove time recalculation when restarting.  Try harder to always return from
the bottom.
* select.h (select_stuff::wait_state): New enum.
(select_stuff::wait): Modify declaration to return select_stuff::wait_states.

winsup/cygwin/release/1.7.16

@@ -24,3 +24,8 @@ Bug fixes:
 
 - Handle inode numbers returned by Samba >= 3.5.4. 
   Fixes: http://cygwin.com/ml/cygwin/2012-05/msg00236.html
+
+- Fix emacs problem which exposed an issue with Cygwin's select() function.
+  If a signal arrives while select is blocking and the program longjmps
+  out of the signal handler then threads and memory may be left hanging.
+  Fixes: http://cygwin.com/ml/cygwin/2012-05/threads.html#00275