bug#14666: 24.3.50; emacs_backtrace.txt

[martin rudalics]

> It is obvious that using these macros in a place where
> their assumptions can be violated is a no-no (as witnessed by this
> crash).

I don't think that macros are important here.  They simply obscure the
backtrace.  If the input thread wants to calculate a window's size and
the Lisp thread deletes the window under its feet, we're lost anyway.

martin