patch applied (ghc): Add support for the IO manager thread on Windows

[Simon Marlow]

Simon Marlow wrote:
> Bulat Ziganshin wrote:
> 
>>Hello Simon,
>>
>>Friday, December 1, 2006, 6:18:08 PM, you wrote:
>>
>>
>>>  * Add support for the IO manager thread on Windows
>>>  Fixes #637.
>>
>>are you tried it - ^Break now handled, say, by ghc/ghci?
> 
> 
> Not yet, but I will.

In fact, it works quite nicely.  As long as you use GHCi from a Cygwin shell 
(and do *not* set CYGWIN=tty), or from a Windows CMD shell.

I couldn't get my installed 6.4.2 or 6.6 to handle ^C in GHCi, so this is 
definitely an improvement.  6.6.1 will have better ^C handling on Windows.

Cheers,
	Simon