* exceptions.cc (sig_handle_tty_stop): Reset PID_STOPPED if not actually

stopping.
* fhandler_console.cc (fhandler_console::fixup_after_fork): Don't set
controlling terminal if just inheriting a handle.
(fhandler_console::fixup_after_exec): Ditto.
* fhandler_tty.cc (fhandler_tty_slave::init): Ditto.
* signal.cc (kill_worker): Set appropriate errno if proc_exists determines that
process does not really exist.

winsup/cygwin/exceptions.cc

@@ -587,7 +587,10 @@ sig_handle_tty_stop (int sig)
   /* Silently ignore attempts to suspend if there is no accomodating
      cygwin parent to deal with this behavior. */
   if (!myself->ppid_handle)
-    return;
+    {
+      myself->process_state &= ~PID_STOPPED;
+      return;
+    }
   myself->stopsig = sig;
   /* See if we have a living parent.  If so, send it a special signal.
    * It will figure out exactly which pid has stopped by scanning