Dear Cafe - what do I have to put in my global .cabal/config in order to make ghci's new :doc command https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/ghci.html#gh... work after "cabal install <foo>"? I thought "documentation: True" should do it but I am invariably getting this: GHCi, version 8.6.2: http://www.haskell.org/ghc/ :? for help Prelude> import Ersatz Prelude Ersatz> :doc solveWith ghc: Can't find any documentation for Ersatz.Solver. This is probably because the module was compiled without '-haddock', but it's also possible that the module contains no documentation. I do have the .cabal/share/doc/x86_64-linux-ghc-8.6.2/ersatz-0.4.4/html directory. The :doc command seems to work for the libraries that come with ghc (documentation in /opt/ghc/ghc-8.6.2/share/doc/ghc-8.6.2/html/ ) - J.W.