emacs hang fix

[Joe Buehler]

> Just a heads up: I am debugging a hang problem in Cygwin that emacs seems
> to trigger.  It might be the same problem you are seeing, in which case 
> it's
> not an emacs problem.  If you have the same problem I do, when you
> run strace on a hung emacs you will see it in an infinite loop trying
> to deal with signal 20 (SIGCHLD).

I tracked this down to a bug in the Cygwin DLL.  The fix is easy -- it's
a one-liner in the source code.  I assume it will be in an upcoming
Cygwin DLL release.
-- 
Joe Buehler



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