Re: [Haskell-cafe] cabal upgrade

On 2008.10.01 13:24:55 -0700, Martin DeMello scribbled 0.9K characters:

On Wed, Oct 1, 2008 at 1:06 PM, Gwern Branwen wrote:

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Yi fails on Alex because Cabal doesn't track executables, nor executables needed for installation. You want 'cabal install alex yi';

Yay, that finally worked :) Had to add ~/.cabal/bin to my path first, which wasn't hard to figure out but should probably also be in a faq somewhere.

The exact issue of where to install executables is somewhat tricky; adding ~/.cabal/bin is one option, but you could've used --prefix=/home/martin/ or you could've used the symlink option in ~/.cabal/config or... There's not really a Cabal-install FAQ for that because there's no clear answer.

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I believe the FAQ covers this.

Nope. I was following http://www.haskell.org/haskellwiki/Yi when I got stuck, and the page makes no mention of how to resolve the alex dependency

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As for cabal install yi-gtk, unless things have changed since I last looked, the answer is Don't Do That. yi-gtk and yi-vty are solely for yi 0.3 and below - it's obsolete, in other words. Yi depends directly on vty (which cabal install will handle) and GTK2HS, which unfortunately is not on Hackage and so you or your distro has to handle that.

Okay, thanks :)

martin

I've added those 2 questions to the installation section. They've come up so often I was sure they were already there. -- gwern monarchist DCJFTF EADA SASSTIXS Kamumaruha Waihopai phones Colonel IA wideband