OK, Stefan was right. The arrows package is an extension of Control.Arrow, not a from-scratch implementation. The name confused me. Perhaps a better name would be "arrows-ext" or something like that. Mike Michael Vanier wrote:
Thanks, but this doesn't answer the question. I can load up the Control.Arrow module fine in ghci. Is there a problem with the packaging information?
I did a google search, and this problem has come up on IRC, but nobody figured out what was causing it as far as I can tell.
Mike
Stefan O'Rear wrote:
On Mon, Jul 30, 2007 at 06:57:25PM -0700, Michael Vanier wrote:
When I try to build lambdabot, I get this:
Configuring lambdabot-4.0... configure: Dependency base-any: using base-2.1.1 configure: Dependency unix-any: using unix-2.1 configure: Dependency network-any: using network-2.0.1 configure: Dependency parsec-any: using parsec-2.0 configure: Dependency mtl-any: using mtl-1.0.1 configure: Dependency haskell-src-any: using haskell-src-1.0.1 configure: Dependency readline-any: using readline-1.0 configure: Dependency QuickCheck-any: using QuickCheck-1.0.1 Setup.hs: cannot satisfy dependency arrows-any
I'm using ghc 6.6.1 compiled from source (by me) on Debian Linux. I thought that arrows were included with the ghc distribution. Does anyone know what's happening and how to fix it?
I don't know what's happening, but you can get arrows easily enough from http://hackage.haskell.org (our CPAN).
Stefan
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