dup tty error.

[Chris January]

Normally i would expect to see this error, say, 1 in 2 times I click the
Cygwin icon. But yesterday I clicked it about 30 times and I keep getting
the same error.
Error follows:
      3 [main] bash 776 fhandler_base::dup: dup(/dev/tty) failed, handle B,
Win32 error 87
readline: warning: rl_prep_terminal: cannot get terminal settings←]0;~
←[32mchris@ADVENT02 ←[33m~←[0m
See this thread for more details:
http://sources.redhat.com/ml/cygwin/2002-05/msg01415.html

Attached is a patch which fixes the bug, by giving the console window title
more time (up to 1 second) to change. FindWindow is called in a loop, so for
the normal execution path there is no extra overhead.

Chris

---
2002-06-30  Christopher January <chris@atomice.net>

 * tty.cc (tty_list::allocate_tty): retry FindWindow if it fails.

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