darcs patch: Split ConfVar into ConfFlag and ConfVar and one more

[Duncan Coutts]

On Thu, 2007-08-16 at 03:39 +0300, Esa Ilari Vuokko wrote:
> Hi,
> 
> I went hunting the few last warnings I see on Cabal build;
> In Configuration.hs, resolveWithFlags, env has no case for
> ConfVar's Impl.  I started adding signatures, and then
> it occured to me, is there actually two types of ConfVar?

Thomas is away for a few days, I'd run it past him when he gets back.

Duncan