GHC 6.12.1 hsc2hs seems to have an issue with compiling sources that contain certain UTF-8 charactes in the comments. It contains code like: showCChar c = ['\\', intToDigit (ord c `quot` 64), intToDigit (ord c `quot` 8 `mod` 8), intToDigit (ord c `mod` 8)] which quite obviously fails if c is a code point with a large ord value (like japanese text for example). This affects at least HsOpenSSL. - Taru Karttunen