from http://aur.archlinux.org/packages.php?ID=17845 peti wrote: Hi amuchamu, the package has compiled fine on your system, but the build fails while generating the Haddock reference documentation. You can work around this problem by removing the line "runhaskell Setup haddock" from the PKGBUILD file; then the build should succeed. Generally speaking, I have no idea why you get that UTF error from Haddock. I have tried the build on my machine, and it works fine: http://aur.pastebin.com/G4Qv1h7Z. That build was run with Haddock version 2.6.1, the version that comes with GHC 6.12.3. Which version do you use? --- If you no longer wish to receive notifications about this package, please go the the above package page and click the UnNotify button.