Hi, I've just upgraded to OS X 10.3 and have been having some problems with ghc. I'm using ghc 5.04.3 because it is compatible with hat - I'm doing a uni project on hat at the moment, so it's critical that it works. When I attempt to build hmake using ghc I get a whole load of errors like these: ghc -DUSE_READLINE=1 -L/sw/lib/ -lreadline -I/sw/include -package lang -c -o /Users/tatd100/Documents/Work/Project/Tools/hmake-3.08/targets/powerpc- Darwin7/obj/hmake/QSort.o QSort.hs slow-fast dropthrough not mangled _sAi_entry: addi r0,r22,12 cmplw cr7,r0,r23 ble- cr7,L11 lis r2,ha16(L_MainCapability$non_lazy_ptr) lwz r2,lo16(L_MainCapability$non_lazy_ptr)(r2) lwz r29,12(r2) b L12 L11: lwz r15,0(r22) lwz r16,4(r22) lwz r17,8(r22) addi r22,r22,12 lis r2,ha16(L_sAi_fast3$non_lazy_ptr) lwz r29,lo16(L_sAi_fast3$non_lazy_ptr)(r2) L12: mtctr r29 bctr .align 2 .section __TEXT,__text,regular,pure_instructions Which eventually drop down to one error that kills the whole process: ghc -DUSE_READLINE=1 -L/sw/lib/ -lreadline -I/sw/include -package lang -c -cpp -o /Users/tatd100/Documents/Work/Project/Tools/hmake-3.08/targets/powerpc- Darwin7/obj/hmake/Compat.o Compat.hs Compat.hs:1: parse error on input `#' make[1]: *** [/Users/tatd100/Documents/Work/Project/Tools/hmake-3.08/targets/ powerpc-Darwin7/obj/hmake/Compat.o] Error 1 make: *** [targets/powerpc-Darwin7/hmake-ghc] Error 2 I'm guessing that there's some binary compatibility issues here... Could it be panther using gcc3.3? Thanks Bob