On 28 July 2010 13:03, michael rice <nowg...@yahoo.com> wrote: > > [mich...@localhost ~]$ ghc-pkg list mtl > /usr/lib/ghc-6.12.1/package.conf.d > [mich...@localhost ~]$ > > Installed?
No; if it was installed it would specify a version. > > Michael > > --- On Tue, 7/27/10, Ivan Miljenovic <ivan.miljeno...@gmail.com> wrote: > > From: Ivan Miljenovic <ivan.miljeno...@gmail.com> > Subject: Re: [Haskell-cafe] Need Control.Monad.State > To: "michael rice" <nowg...@yahoo.com> > Cc: haskell-cafe@haskell.org > Date: Tuesday, July 27, 2010, 10:51 PM > > On 28 July 2010 12:39, michael rice <nowg...@yahoo.com> 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.miljeno...@gmail.com > IvanMiljenovic.wordpress.com > -- Ivan Lazar Miljenovic ivan.miljeno...@gmail.com IvanMiljenovic.wordpress.com _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
