On 5/14/07, David House
You should install 2.3 from the haskell-mode page [1]. Isaac Jones, maintainer of the Debian haskell-mode package has been contacted in order to get the latest version in the Debian repository, so it should happen soon, but in the mean time you could download and install the latest version yourself. It features quite a few bugfixes and new features that I imagine are documented on the aforementioned page.
I've installed 2.3 and it exhibits the same indentation behavior: any entity appearing on a new line immediately after "module X where" wants to be indented 4 spaces, including function definitions and variable bindings. "if-then-else" want to be lined up with one another, although both GHC and Hugs reject this layout. Here's the result of indent-region on the prior example: module Num where import IO main = do putStrLn "Enter a number: " inp <- getLine let n = read inp if n == 0 then putStrLn "Zero" else putStrLn "NotZero" This is distressing, because I've gotten rather used to letting Emacs worry about indentation for me. (This works well in tuareg-mode for OCaml. But, as I said earlier, I am a layout-sensitive-language newbie.) Chris