On 28 July 2010 13:03, michael rice wrote:

[michael@localhost ~]$ ghc-pkg list mtl /usr/lib/ghc-6.12.1/package.conf.d [michael@localhost ~]$

Installed?

No; if it was installed it would specify a version.

Michael

--- On Tue, 7/27/10, Ivan Miljenovic wrote:

From: Ivan Miljenovic Subject: Re: [Haskell-cafe] Need Control.Monad.State To: "michael rice" Cc: haskell-cafe@haskell.org Date: Tuesday, July 27, 2010, 10:51 PM

On 28 July 2010 12:39, michael rice wrote:

...

How do I import Control.Monad.State?

Install and use the mtl library (comes with the Haskell platform), monads-fd (almost identical API to mtl; the point of this is that mtl uses some extension: the non-extension bits are in the transformers library and monads-fd extends transformers by using extensions to implement mtl functionality) or monads-tf (a different approach to what monads-fd does using different extensions).

To check if you have mtl installed (substitute the other package names if necessary):

ghc-pkg list mtl

If it isn't installed, you can use cabal-install to install it:

cabal install mtl

-- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com IvanMiljenovic.wordpress.com

-- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com IvanMiljenovic.wordpress.com

See below. Lot's of warnings. Is the install OK? If so, can I use the same *import*? Michael --- On Tue, 7/27/10, Ivan Miljenovic wrote:

If it isn't installed, you can use cabal-install to install it:

cabal install mtl

-- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com IvanMiljenovic.wordpress.com

[michael@localhost ~]$ cabal install mtl Resolving dependencies... Downloading mtl-1.1.0.2... Configuring mtl-1.1.0.2... Preprocessing library mtl-1.1.0.2... Building mtl-1.1.0.2... [ 1 of 21] Compiling Control.Monad.Identity ( Control/Monad/Identity.hs, dist/build/Control/Monad/Identity.o ) Control/Monad/Cont.hs:1:11:     Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead Control/Monad/Cont/Class.hs:1:11:     Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead Control/Monad/Error.hs:1:11:     Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead Control/Monad/Error/Class.hs:1:11:     Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead Control/Monad/Identity.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. Control/Monad/List.hs:1:11:     Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead Control/Monad/RWS/Lazy.hs:1:11:     Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead Control/Monad/RWS/Strict.hs:1:11:     Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead Control/Monad/Reader.hs:2:11:     Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead Control/Monad/Reader/Class.hs:1:11:     Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead Control/Monad/State/Lazy.hs:1:11:     Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead Control/Monad/State/Strict.hs:1:11:     Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead Control/Monad/Writer.hs:1:11:     Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead Control/Monad/Writer/Class.hs:1:11:     Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead Control/Monad/Writer/Lazy.hs:1:11:     Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead Control/Monad/Writer/Strict.hs:1:11:     Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead [ 2 of 21] Compiling Control.Monad.Writer.Class ( Control/Monad/Writer/Class.hs, dist/build/Control/Monad/Writer/Class.o ) Control/Monad/Writer/Class.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. [ 3 of 21] Compiling Control.Monad.Error.Class ( Control/Monad/Error/Class.hs, dist/build/Control/Monad/Error/Class.o ) Control/Monad/Error/Class.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. [ 4 of 21] Compiling Control.Monad.State.Class ( Control/Monad/State/Class.hs, dist/build/Control/Monad/State/Class.o ) Control/Monad/State/Class.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. [ 5 of 21] Compiling Control.Monad.Reader.Class ( Control/Monad/Reader/Class.hs, dist/build/Control/Monad/Reader/Class.o ) Control/Monad/Reader/Class.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. [ 6 of 21] Compiling Control.Monad.RWS.Class ( Control/Monad/RWS/Class.hs, dist/build/Control/Monad/RWS/Class.o ) Control/Monad/RWS/Class.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. [ 7 of 21] Compiling Control.Monad.Trans ( Control/Monad/Trans.hs, dist/build/Control/Monad/Trans.o ) Control/Monad/Trans.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. Control/Monad/Trans.hs:26:0:     Warning: The import of `System.IO' is redundant                except perhaps to import instances from `System.IO'              To import instances alone, use: import System.IO() [ 8 of 21] Compiling Control.Monad.Cont.Class ( Control/Monad/Cont/Class.hs, dist/build/Control/Monad/Cont/Class.o ) Control/Monad/Cont/Class.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. [ 9 of 21] Compiling Control.Monad.Reader ( Control/Monad/Reader.hs, dist/build/Control/Monad/Reader.o ) Control/Monad/Reader.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. [10 of 21] Compiling Control.Monad.Error ( Control/Monad/Error.hs, dist/build/Control/Monad/Error.o ) Control/Monad/Error.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. Control/Monad/Error.hs:57:0:     Warning: The import of `Control.Monad.Reader.Class' is redundant                except perhaps to import instances from `Control.Monad.Reader.Class'              To import instances alone, use: import Control.Monad.Reader.Class() Control/Monad/Error.hs:58:0:     Warning: The import of `Control.Monad.State.Class' is redundant                except perhaps to import instances from `Control.Monad.State.Class'              To import instances alone, use: import Control.Monad.State.Class() Control/Monad/Error.hs:60:0:     Warning: The import of `Control.Monad.Writer.Class' is redundant                except perhaps to import instances from `Control.Monad.Writer.Class'              To import instances alone, use: import Control.Monad.Writer.Class() Control/Monad/Error.hs:63:0:     Warning: The import of `System.IO' is redundant                except perhaps to import instances from `System.IO'              To import instances alone, use: import System.IO() [11 of 21] Compiling Control.Monad.List ( Control/Monad/List.hs, dist/build/Control/Monad/List.o ) Control/Monad/List.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. [12 of 21] Compiling Control.Monad.RWS.Lazy ( Control/Monad/RWS/Lazy.hs, dist/build/Control/Monad/RWS/Lazy.o ) Control/Monad/RWS/Lazy.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. Control/Monad/RWS/Lazy.hs:45:0:     Warning: The import of `Control.Monad.Reader.Class' is redundant                except perhaps to import instances from `Control.Monad.Reader.Class'              To import instances alone, use: import Control.Monad.Reader.Class() Control/Monad/RWS/Lazy.hs:46:0:     Warning: The import of `Control.Monad.State.Class' is redundant                except perhaps to import instances from `Control.Monad.State.Class'              To import instances alone, use: import Control.Monad.State.Class() Control/Monad/RWS/Lazy.hs:48:0:     Warning: The import of `Control.Monad.Writer.Class' is redundant                except perhaps to import instances from `Control.Monad.Writer.Class'              To import instances alone, use: import Control.Monad.Writer.Class() [13 of 21] Compiling Control.Monad.RWS ( Control/Monad/RWS.hs, dist/build/Control/Monad/RWS.o ) Control/Monad/RWS.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. [14 of 21] Compiling Control.Monad.RWS.Strict ( Control/Monad/RWS/Strict.hs, dist/build/Control/Monad/RWS/Strict.o ) Control/Monad/RWS/Strict.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. Control/Monad/RWS/Strict.hs:45:0:     Warning: The import of `Control.Monad.Reader.Class' is redundant                except perhaps to import instances from `Control.Monad.Reader.Class'              To import instances alone, use: import Control.Monad.Reader.Class() Control/Monad/RWS/Strict.hs:46:0:     Warning: The import of `Control.Monad.State.Class' is redundant                except perhaps to import instances from `Control.Monad.State.Class'              To import instances alone, use: import Control.Monad.State.Class() Control/Monad/RWS/Strict.hs:48:0:     Warning: The import of `Control.Monad.Writer.Class' is redundant                except perhaps to import instances from `Control.Monad.Writer.Class'              To import instances alone, use: import Control.Monad.Writer.Class() [15 of 21] Compiling Control.Monad.State.Lazy ( Control/Monad/State/Lazy.hs, dist/build/Control/Monad/State/Lazy.o ) Control/Monad/State/Lazy.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. [16 of 21] Compiling Control.Monad.State ( Control/Monad/State.hs, dist/build/Control/Monad/State.o ) Control/Monad/State.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. [17 of 21] Compiling Control.Monad.State.Strict ( Control/Monad/State/Strict.hs, dist/build/Control/Monad/State/Strict.o ) Control/Monad/State/Strict.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. [18 of 21] Compiling Control.Monad.Writer.Lazy ( Control/Monad/Writer/Lazy.hs, dist/build/Control/Monad/Writer/Lazy.o ) Control/Monad/Writer/Lazy.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. [19 of 21] Compiling Control.Monad.Writer ( Control/Monad/Writer.hs, dist/build/Control/Monad/Writer.o ) Control/Monad/Writer.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. [20 of 21] Compiling Control.Monad.Writer.Strict ( Control/Monad/Writer/Strict.hs, dist/build/Control/Monad/Writer/Strict.o ) Control/Monad/Writer/Strict.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. [21 of 21] Compiling Control.Monad.Cont ( Control/Monad/Cont.hs, dist/build/Control/Monad/Cont.o ) Control/Monad/Cont.hs:1:0:     Warning: Module `Prelude' is deprecated:                You are using the old package `base' version 3.x.                Future GHC versions will not support base version 3.x. You                should update your code to use the new base version 4.x. Registering mtl-1.1.0.2... Installing library in /home/michael/.cabal/lib/mtl-1.1.0.2/ghc-6.12.1 Registering mtl-1.1.0.2... [michael@localhost ~]$

I didn't realize the State monad wasn't part of the base install. Any particular reason for this? -deech On Tue, Jul 27, 2010 at 10:24 PM, Ivan Miljenovic

wrote:

On 28 July 2010 13:17, michael rice wrote:

...

See below. Lot's of warnings. Is the install OK? If so, can I use the

same *import*?

Yeah, the install is OK. The meaning of the warnings are:

* "Warning: -fallow-undecidable-instances is deprecated:" this GHC option has changed name, but the mtl package still uses the old name.

* "Warning: Module `Prelude' is deprecated:" mtl doesn't specify any bounds on the version of the base library to be used (mainly because of historic reasons when it wasn't changing much and the Haskell community wasn't stressing versioning as much; note that the last version of mtl was released almost 2 years ago). Because a lot of packages broke when GHC-6.10.4 started shipping with base-4 (along with base-3 for compatability purposes) due to the differences in how exceptions were handled, if there is no upper bound on the version of base to be used then cabal-install plays it safe and uses base-3. However, the next version of GHC (6.14, which should be coming out later this year) will not ship with base-3, so GHC-6.12 included that warning message for people that kept trying to use base-3 that their code won't work with 6.14.

So yes, now you can use "import Control.Monad.State".

...

Michael

--- On Tue, 7/27/10, Ivan Miljenovic wrote:

...

If it isn't installed, you can use cabal-install to install it:

cabal install mtl

-- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com IvanMiljenovic.wordpress.com

[michael@localhost ~]$ cabal install mtl Resolving dependencies... Downloading mtl-1.1.0.2... Configuring mtl-1.1.0.2... Preprocessing library mtl-1.1.0.2... Building mtl-1.1.0.2... [ 1 of 21] Compiling Control.Monad.Identity ( Control/Monad/Identity.hs,

dist/build/Control/Monad/Identity.o )

...

Control/Monad/Cont.hs:1:11: Warning: -fallow-undecidable-instances is deprecated: use

-XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

...

Control/Monad/Cont/Class.hs:1:11: Warning: -fallow-undecidable-instances is deprecated: use

-XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

...

Control/Monad/Error.hs:1:11: Warning: -fallow-undecidable-instances is deprecated: use

-XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

...

Control/Monad/Error/Class.hs:1:11: Warning: -fallow-undecidable-instances is deprecated: use

-XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

...

Control/Monad/Identity.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x.

Control/Monad/List.hs:1:11: Warning: -fallow-undecidable-instances is deprecated: use

-XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

...

Control/Monad/RWS/Lazy.hs:1:11: Warning: -fallow-undecidable-instances is deprecated: use

-XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

...

Control/Monad/RWS/Strict.hs:1:11: Warning: -fallow-undecidable-instances is deprecated: use

-XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

...

Control/Monad/Reader.hs:2:11: Warning: -fallow-undecidable-instances is deprecated: use

-XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

...

Control/Monad/Reader/Class.hs:1:11: Warning: -fallow-undecidable-instances is deprecated: use

-XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

...

Control/Monad/State/Lazy.hs:1:11: Warning: -fallow-undecidable-instances is deprecated: use

-XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

...

Control/Monad/State/Strict.hs:1:11: Warning: -fallow-undecidable-instances is deprecated: use

-XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

...

Control/Monad/Writer.hs:1:11: Warning: -fallow-undecidable-instances is deprecated: use

-XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

...

Control/Monad/Writer/Class.hs:1:11: Warning: -fallow-undecidable-instances is deprecated: use

-XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

...

Control/Monad/Writer/Lazy.hs:1:11: Warning: -fallow-undecidable-instances is deprecated: use

-XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

...

Control/Monad/Writer/Strict.hs:1:11: Warning: -fallow-undecidable-instances is deprecated: use

-XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

...

[ 2 of 21] Compiling Control.Monad.Writer.Class ( Control/Monad/Writer/Class.hs, dist/build/Control/Monad/Writer/Class.o )

Control/Monad/Writer/Class.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x. [ 3 of 21] Compiling Control.Monad.Error.Class ( Control/Monad/Error/Class.hs, dist/build/Control/Monad/Error/Class.o )

Control/Monad/Error/Class.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x. [ 4 of 21] Compiling Control.Monad.State.Class ( Control/Monad/State/Class.hs, dist/build/Control/Monad/State/Class.o )

Control/Monad/State/Class.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x. [ 5 of 21] Compiling Control.Monad.Reader.Class ( Control/Monad/Reader/Class.hs, dist/build/Control/Monad/Reader/Class.o )

Control/Monad/Reader/Class.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x. [ 6 of 21] Compiling Control.Monad.RWS.Class ( Control/Monad/RWS/Class.hs, dist/build/Control/Monad/RWS/Class.o )

Control/Monad/RWS/Class.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x. [ 7 of 21] Compiling Control.Monad.Trans ( Control/Monad/Trans.hs, dist/build/Control/Monad/Trans.o )

Control/Monad/Trans.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x.

Control/Monad/Trans.hs:26:0: Warning: The import of `System.IO' is redundant except perhaps to import instances from `System.IO' To import instances alone, use: import System.IO() [ 8 of 21] Compiling Control.Monad.Cont.Class ( Control/Monad/Cont/Class.hs, dist/build/Control/Monad/Cont/Class.o )

Control/Monad/Cont/Class.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x. [ 9 of 21] Compiling Control.Monad.Reader ( Control/Monad/Reader.hs, dist/build/Control/Monad/Reader.o )

Control/Monad/Reader.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x. [10 of 21] Compiling Control.Monad.Error ( Control/Monad/Error.hs, dist/build/Control/Monad/Error.o )

Control/Monad/Error.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x.

Control/Monad/Error.hs:57:0: Warning: The import of `Control.Monad.Reader.Class' is redundant except perhaps to import instances from `Control.Monad.Reader.Class' To import instances alone, use: import Control.Monad.Reader.Class()

Control/Monad/Error.hs:58:0: Warning: The import of `Control.Monad.State.Class' is redundant except perhaps to import instances from `Control.Monad.State.Class' To import instances alone, use: import Control.Monad.State.Class()

Control/Monad/Error.hs:60:0: Warning: The import of `Control.Monad.Writer.Class' is redundant except perhaps to import instances from `Control.Monad.Writer.Class' To import instances alone, use: import Control.Monad.Writer.Class()

Control/Monad/Error.hs:63:0: Warning: The import of `System.IO' is redundant except perhaps to import instances from `System.IO' To import instances alone, use: import System.IO() [11 of 21] Compiling Control.Monad.List ( Control/Monad/List.hs, dist/build/Control/Monad/List.o )

Control/Monad/List.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x. [12 of 21] Compiling Control.Monad.RWS.Lazy ( Control/Monad/RWS/Lazy.hs, dist/build/Control/Monad/RWS/Lazy.o )

Control/Monad/RWS/Lazy.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x.

Control/Monad/RWS/Lazy.hs:45:0: Warning: The import of `Control.Monad.Reader.Class' is redundant except perhaps to import instances from `Control.Monad.Reader.Class' To import instances alone, use: import Control.Monad.Reader.Class()

Control/Monad/RWS/Lazy.hs:46:0: Warning: The import of `Control.Monad.State.Class' is redundant except perhaps to import instances from `Control.Monad.State.Class' To import instances alone, use: import Control.Monad.State.Class()

Control/Monad/RWS/Lazy.hs:48:0: Warning: The import of `Control.Monad.Writer.Class' is redundant except perhaps to import instances from `Control.Monad.Writer.Class' To import instances alone, use: import Control.Monad.Writer.Class() [13 of 21] Compiling Control.Monad.RWS ( Control/Monad/RWS.hs, dist/build/Control/Monad/RWS.o )

Control/Monad/RWS.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x. [14 of 21] Compiling Control.Monad.RWS.Strict ( Control/Monad/RWS/Strict.hs, dist/build/Control/Monad/RWS/Strict.o )

Control/Monad/RWS/Strict.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x.

Control/Monad/RWS/Strict.hs:45:0: Warning: The import of `Control.Monad.Reader.Class' is redundant except perhaps to import instances from `Control.Monad.Reader.Class' To import instances alone, use: import Control.Monad.Reader.Class()

Control/Monad/RWS/Strict.hs:46:0: Warning: The import of `Control.Monad.State.Class' is redundant except perhaps to import instances from `Control.Monad.State.Class' To import instances alone, use: import Control.Monad.State.Class()

Control/Monad/RWS/Strict.hs:48:0: Warning: The import of `Control.Monad.Writer.Class' is redundant except perhaps to import instances from `Control.Monad.Writer.Class' To import instances alone, use: import Control.Monad.Writer.Class() [15 of 21] Compiling Control.Monad.State.Lazy ( Control/Monad/State/Lazy.hs, dist/build/Control/Monad/State/Lazy.o )

Control/Monad/State/Lazy.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x. [16 of 21] Compiling Control.Monad.State ( Control/Monad/State.hs, dist/build/Control/Monad/State.o )

Control/Monad/State.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x. [17 of 21] Compiling Control.Monad.State.Strict ( Control/Monad/State/Strict.hs, dist/build/Control/Monad/State/Strict.o )

Control/Monad/State/Strict.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x. [18 of 21] Compiling Control.Monad.Writer.Lazy ( Control/Monad/Writer/Lazy.hs, dist/build/Control/Monad/Writer/Lazy.o )

Control/Monad/Writer/Lazy.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x. [19 of 21] Compiling Control.Monad.Writer ( Control/Monad/Writer.hs, dist/build/Control/Monad/Writer.o )

Control/Monad/Writer.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x. [20 of 21] Compiling Control.Monad.Writer.Strict ( Control/Monad/Writer/Strict.hs, dist/build/Control/Monad/Writer/Strict.o )

Control/Monad/Writer/Strict.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x. [21 of 21] Compiling Control.Monad.Cont ( Control/Monad/Cont.hs, dist/build/Control/Monad/Cont.o )

Control/Monad/Cont.hs:1:0: Warning: Module `Prelude' is deprecated: You are using the old package `base' version 3.x. Future GHC versions will not support base version 3.x. You should update your code to use the new base version 4.x. Registering mtl-1.1.0.2... Installing library in /home/michael/.cabal/lib/mtl-1.1.0.2/ghc-6.12.1 Registering mtl-1.1.0.2... [michael@localhost ~]$

-- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com IvanMiljenovic.wordpress.com _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe