ARK the Archaeological Recording Kit is an opensource, standards compliant, web-delivered system for the creation, storage, manipulation and publication of archaeological data and media.
Formerly Dr Haskell HLint can only be compiled by GHC 6.10.1 or above (it makes use of view patterns), but does not require any copy of GHC to run. HLint should be able to give hints for any Haskell code, including most GHC extensions