[Haskell-cafe] How to get Haddock to generate docs for a directory tree of modules

[Brian Hulley]

Hi -
I've been looking at the docs for Haddock at 
http://haskell.org/haddock/haddock-html-0.7/index.html but I can't seem to 
find any option to recursively traverse a directory generating hyperlinked 
docs for all modules anywhere in the directory or any sub directory etc.

Is there a simple undocumented flag I'm missing?

Thanks, Brian.