Hi, I just pulled the latest darcs version of hat, compiled it using ghc-6.6.1 and tried to debug a program. Unfortunately, there seems to be no tracing information for standard libraries by default. ... During compilation using "hmake -hat" hat-trans says ... hat-trans: /usr/local/include/hat-2.05/System/IO/Unsafe.hx: openFile: does not exist (No such file or directory) Is there a way to generate tracing information for (parts of) the standard libraries? (I realizied there is a script called "start" in the hat root directory?) Or, is there another version of hat that works with ghc-6.6.1? -Matthias -- Matthias Neubauer | Universität Freiburg, Institut für Informatik | tel +49 761 203 8060 Georges-Köhler-Allee 79, 79110 Freiburg i. Br., Germany | fax +49 761 203 8052