On Sun, Jul 11, 2010 at 2:05 PM,
OK, I know this is a newbie kind of thing (I guess I am a newbie to GHCi). I've been over and over and over the wiki and I just can't find the answer to this very, very elementary question. How can I load a package that I've downloaded using Cabal into GHCi? When I do the :l, it just doesn't see the thing. On one level, this is clear: the downloaded Cabal packages (yes, more than one) are under .cabal in $HOME and not in the lib/ghc area. OK, fine. But there's no package data base to point to so that the packages can be loaded.
This just *has* to be a simple thing, but I just can't find it, no matter how flat my head gets beating against the wall. I apologize for the density of my skull, but can someone point me in the right direction here?
GHCi automatically loads the package, you just need to put the modules into scope. This is analogous to using an "import" declaration. For example: GHCi, version 6.10.4: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer ... linking ... done. Loading package base ... linking ... done. Prelude> :m Data.ByteString.Char8 Prelude Data.ByteString.Char8> pack "hello" Loading package bytestring-0.9.1.4 ... linking ... done. "hello" Prelude Data.ByteString.Char8> pack "hello" "hello" So, just put the modules you want into scope with :m Module1 Module2 ... or :m Module1 :m +Module2 Module3 :m +Module4 Module5 That should get you started =). Cheers, -- Felipe.