* cygtls.h (_local_storage::setmode_file): New element.

(_local_storage::setmode_mode): New element.
* tlsoffsets.h: Regenerate.
* cygwin.din (setmode): Define as cygwin_getmode.
* syscalls.cc (setmode_helper): Use setmode_* variables from tls rather than
using unthreadsafe static.
(setmode): Break out fwalk stuff.
(cygwin_setmode): New function.  Put fwalk stdio stuff here.

winsup/cygwin/thread.cc

@@ -1756,8 +1756,7 @@ int
 semaphore::_trywait ()
 {
   /* FIXME: signals should be able to interrupt semaphores...
-   *We probably need WaitForMultipleObjects here.
-   */
+    We probably need WaitForMultipleObjects here.  */
   if (WaitForSingleObject (win32_obj_id, 0) == WAIT_TIMEOUT)
     {
       set_errno (EAGAIN);