Could not find 'Prelude'

[Richard Eisenberg]

On HEAD, commit b9d53..., a freshly built ghc-stage2 can't find its Prelude:

> rae:22:06:54 ~/temp> ~/Documents/ghc-baseline/inplace/bin/ghc-stage2 Scratch.hs
> 
> Scratch.hs:1:1:
>     Could not find module ‛Prelude’
>     There are files missing in the ‛base’ package,
>     try running 'ghc-pkg check'.
>     Use -v to see a list of the files searched for.
> 

I'm building on Mac OS 10.7.5, and my build.mk is set to 'quick'.

Any ideas?

Thanks,
Richard