Helo: My name is Facundo DomÃnguez. I am trying to install hat-2.02 with ghc-6.0.1 on an Intel machine with a Linux OS. I have troubles to get ghc to accept the code of the debugger due to some details like: * Complaining about Prelude.: instead of just : and Prelude.[] instead of just [] * Complaining about "T." prefix in definitions of the method wrapVal of class WrapVal * I got a type error when I tried to compile hatlib/Hat/Hat.hs, 274 * Finally, I got the following error message from ghc. Here's the error message obtained after executing make: ghc -package-name hat -fglasgow-exts -package lang -package base -fno-warn-overlapping-patterns -fno-warn-missing-methods -i/inco/home01/fdomin/fusion/tools/hat-2.02/targets/ix86-Linux/obj/hatlib/ghc -I/inco/group02/fusion/tools/hat-2.02/include '-#include "hat-c.h"' -cpp -c -o /inco/home01/fdomin/fusion/tools/hat-2.02/targets/ix86-Linux/obj/hatlib/ghc/Hat/Foreign/ForeignPtr.o Hat/Foreign/ForeignPtr.hs Hat/Foreign/ForeignPtr.hs:24: Couldn't match `GHC.ForeignPtr.FinalizerPtr (Hat.Hat.R a)' against `GHC.IOBase.IO ()' Expected type: GHC.ForeignPtr.FinalizerPtr (Hat.Hat.R a) Inferred type: GHC.IOBase.IO () In the application `(Hat.Hat.toIO Hat.Hat.toTuple0) knewForeignPtr z2newForeignPtr' In the second argument of `GHC.ForeignPtr.newForeignPtr', namely `((Hat.Hat.toIO Hat.Hat.toTuple0) knewForeignPtr z2newForeignPtr)' So, I wonder if you have any idea about why I am having so much dificulties, or better if you have some source distribution for ghc 6.0.1. Thank you, anyway. Facundo