Alfonso Acosta: > Did you try to compile with -fallow-overlapping-instances
mm <[EMAIL PROTECTED]>: > Same effect: > > ghc -fallow-overlapping-instances --make test5.lhs > [1 of 1] Compiling Main ( test5.lhs, test5.o ) > > test5.lhs:22:1: > Duplicate instance declarations: > instance [overlap ok] (Succ a b) => GT a b > -- Defined at test5.lhs:22:1 > instance [overlap ok] (Succ a b, GT b c) => GT a c > -- Defined at test5.lhs:23:1 Also see Oleg's post in this thread: http://www.haskell.org/pipermail/haskell-cafe/2007-February/022926.html _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
