Which ghc versions can build ghc-6.8.1?

[Simon Marlow]

Gregory Wright wrote:

> Can 6.4 build 6.8.1?  Or is a later version required?

We test the GHC build with 6.2.2, and the latest released version 
(previously 6.6.1, now 6.8.1).  It's not unlikely that bugs have crept in 
that make the build fail with 6.4.x; if you find any such bugs then please 
do let us have a fix.

Cheers,
	Simon