haddock depencies to std-modules

[Patrick Scheibe]

hello
I use haddock to create documentation. Everything is fine except of the 
references to standard modules. If I am using standardtypes like Int or 
String haddock wants to create crossrefs to these modules and fails because 
of missing "sourcecode".

Is there a simple way to fix this? I've heard of interface files to create 
right refs to existing docs, but that doesnt work. Whats the right way?

Cheers
Patrick