patch applied (ghc): Increase the bar for bootstrapping GHC to 6.4 (HEAD only)

[Duncan Coutts]

On Mon, 2008-01-21 at 07:31 -0800, Simon Marlow wrote:
> Mon Jan 21 03:18:35 PST 2008  Simon Marlow <simonmar at microsoft.com>
>   * Increase the bar for bootstrapping GHC to 6.4 (HEAD only)
>    - remove $(ghc_ge_601), $(ghc_ge_602), $(ghc_ge_603)
>    - configure now checks the GHC version number
>    - there are probably various cleanups that we can now do in compat/
>      and compiler/, but I haven't done those yet.

Yay! Does that mean we could do the same in Cabal HEAD? :-) 

That is of course, assuming we do not intend to ship a Cabal-1.4 with
GHC 6.8.3 which is not out of the realms of possibility depending on how
compatible it is in practise.

It'd mean we could remove a lot from Cabal's compat/ and also drop
support for generating the old ghc-6.2 style of package registration
files.

Duncan