Re: [Haskell-cafe] Re: [Haskell] ANN: NoSlow - Microbenchmarks for array libraries

Duncan Coutts schrieb:

On Sat, 2009-11-28 at 09:29 -0800, Bryan O'Sullivan wrote:

...

On Fri, Nov 27, 2009 at 1:05 PM, Henning Thielemann wrote:

I found that the dependency on Cairo and GTK originates from criterion. I have to build criterion with 'cabal install -f-chart criterion'. Unfortunately I cannot do 'cabal fetch criterion' in order to look into the cabal file, before the dependencies are resolved ...

...

Really? If cabal fetch runs the build depsolver before trying to download a package, that seems like a bug. Have you reported it?

It's not a bug, it's a feature! :-)

Henning, you want "cabal unpack" so you can study the package contents.

The fetch command is mainly so you can fetch packages and then install them when you're offline. You'd be jolly annoyed if it missed dependencies.

I well see the benefits of the current behaviour of 'cabal fetch' and according to the name 'unpack' I didn't expect it could be the solution of my problem. Duncan has explained kindly the issue in: http://hackage.haskell.org/trac/hackage/ticket/612 http://hackage.haskell.org/trac/hackage/ticket/423 However I have still the problem, that once criterion is installed without gtk and cairo, then 'cabal install' still wants to download them when I install packages that import 'criterion'. :-( Bug or feature?