Hi, I'm trying to make a developement package of xmonad for ubuntu. When I run runhaskell GenerateManpage.hs under Ubuntu 10.10 (Maverick Meerkat), I get the following error: GenerateManpage.hs: user error (Pattern match failure in do expression at util/GenerateManpage.hs:79:4-17) The following package versions are installed: libghc6-pandoc-dev 1.5.1.1-5build1 libghc6-regex-base-dev 0.93.1-8 libghc6-regex-posix-dev 0.94.1-2 I've tried running it under Ubuntu 10.04, and there it works. There, these version are installed: libghc6-regex-base-dev 0.93.1-6 libghc6-regex-posix-dev 0.93.2-5 libghc6-pandoc-dev 1.5.1.1-3ubuntu1 It also works under up-to-date Arch Linux with these versions: haskell-pandoc 1.8.1.1-1 haskell-regex-base 0.93.2-1.1 haskell-regex-posix 0.94.2-1 I can't really see what in GenerateManpage.hs is so sensitive to these versions. It might of course be related to something completely different. Can someone help me out here? Regards, Karl Ljungkvist