oh ... yes .. my .cabal file is incomplete! Thanks, Max. Vasili
On Thu, May 14, 2009 at 3:56 PM, Max Rabkin <max.rab...@gmail.com> wrote: > On Thu, May 14, 2009 at 10:51 PM, Vasili I. Galchin <vigalc...@gmail.com> > wrote: > > Hello, > > > > When I am compiling a module, I get "Could not find module > > 'Control.Module.State': > > it is a > > member of package mtl-1.1.0.2, which is hidden" > > > > 1) What is the efficacy of "hiddenness"? > > As I understand it, the purpose is two-fold. Firstly, if you have > multiple versions a package (or multiple packages containing the same > module), you can hide the ones not in use. Second, it ensures you have > declared all dependencies. > > > 2) I have forgotten what tool I run to expose a package. ?? > > I've only ever had this when working with Cabal, where I have missed a > dependency. In this case, it looks like you have an undeclared > dependency on mtl. I'm not sure whether this arises in the non-Cabal > case. > > > 3) In another vein, the code is using Data.Finitemap ... so I guess > I > > must "darcs" install this? > > I believe it was just uploaded to Hackage (it's obsolete, but useful > for getting old code to run). > > HTH, > Max >
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