Haddock documentation subdirectories

[Judah Jacobson]

I was able to get make install of the haddock docs working by
upgrading my autoconf from 2.59 to 2.61.  However, I noticed that
$prefix/share now contains three subdirectories:

share/doc/ghc/libraries (contains the haddock docs)
share/ghc (contains several empty directories, one for each library package)
share/ghc-6.7.20070902 (completely empty)

In contrast, my install of ghc-6.6.1 has only the following directory
under share:
share/ghc-6.7.20070902

Is this an intended change, or is something strange happening here?

Thanks,
-Judah